Research on Open Space

Research on Open Space

Research projects and inventories help us monitor management practices, improve resources and park visitor experiences.

Research Permits

A permit is required to conduct research activities or to collect any biological resource elements from open space. After completing the application, a more detailed research proposal may be requested.

Research Proposal Request

Drone Permits

If you are interested in using Uncrewed Aircraft Systems (UAS), also known as drones, please see the Uncrewed Aircraft Systems (UAS) Policy.

2025 Small Grants Program

Parks & Open Space awards small grants for research and biological inventories on open space lands. These research projects and inventories provide valuable data to monitor management practices, advance our ability to adapt and mitigate the effects of climate change, and improve resources and park visitor experiences.

  • Grants are awarded up to $12,500.
  • Preference will be given to proposals that address the priority research topics, but all proposals will be considered.
  • It is strongly encouraged to contact the appropriate staff members to discuss research topics before submitting your proposal.
  • Research Proposal Requirements and Priority Research Topics

Sorry, the submission deadline was Jan. 9. Late applications are not accepted.

Research Reports

More than 200 research projects have been completed since 2000. Below you will find final reports from the Small Grants Program as well as other scientific papers, studies and staff reports in PDF format.

Note: Many of these documents are from external parties and may not be fully accessible. To request an Americans with Disability Act (ADA) accommodation, please email ADA@bouldercounty.gov, call 303-441-1386, or complete the accommodation request form.

Subject Report Title Year Researcher Name Property Keywords
Invasive Plants The effects of cheatgrass management with indaziflam on live fuel moisture content in rangeland plant communities along the Colorado Front Range 2024 Jacob S. Courkamp and John Watson Ron Stewart Preserve at Rabbit Mountain, Hall Ranch Mine, Highway 36A and 36B Live fuel moisture content (LFMC), wildfire risk, impacts, Jefferson County, invasive annual grasses, native forbs
Visitor Studies 2024 Parks & Open Space Visitation Report 2024 Staff Various Visitors, Users, Trail Counters
Wildlife How do wildfires influence reproductive behavior and mating dynamics? A case study with dragonflies 2024 Sarah E. Nalley, Michael P. Moore, Ph.D. Heil Valley Ranch, Mud Lake Global change; wildfire; evolutionary ecology; sexual selection; wildlife biology; Anisoptera; odonates
Wildlife Evaluating UAS as a Tool for Improving Elk Population Counts in a Suburban Forested Area of North Central Colorado 2024 Michael Wussow Rabbit Mountain, Red Hill, Various Aerial Surveying, Unoccupied Aerial Systems (UAS), Drones, Elk Population, Visibility Bias, Ground Counts, Wildlife Management, Sightability Modeling, Wildlife Surveying, Population Management
Visitor Studies 2023 Parks & Open Space Visitation Report 2023 Staff Various Visitors, Users, Trail Counters
Ecosystems Cheatgrass, Mammals, Birds, Butterflies, and Wildfire: A Study of Ecosystem Interactions 2023 Anyll Markevich, Stephen R. Jones, Christel G. Markevich, Timothy R. Seastedt Heil Valley Ranch, Trevarton Bromus tectorum, Downy brome, weeds
Plant Ecology / Weeds Plant and soil microbial community composition legacies along a 5-year time series gradient post-indaziflam (Rejuvra™) herbicide treatment 2023 Ember Bradbury, Amy Gill, and Caroline A. Havrilla Ron Stewart Preserve at Rabbit Mountain, Trevarton Bromus tectorum, Downy brome, cheatgrass, microbes, native plants, herbicide, pesticide,
Plant Ecology Understanding spatial variation in grassland fuels to inform wildfire risk mitigation strategies in the Front Range 2023 Jonathan Henn and Katharine Suding Various Grasslands, fire behavior, fire risk, fuel, biomass, moisture
Plant Ecology An Investigation into Mycorrhizal Associations amongst American Plum (Prunus americana) and Chokecherry (Prunus virginiana) populations on Boulder County Open Space Restoration Sites 2023 Zachary Hedstrom Hall Ranch, Western Mobile, Bielins-Hock Mycorrhizal, chokecherry, wild plum, restoration, soil health
Wildlife Proposal to rear and assess populations for the Hudsonian emerald (Somatochlora hudsonica), Mountain emerald (Somatochlora semicircularis), and American emerald (Cordulia shurtleffi) on multiple Boulder County Parks and Open Space sites 2023 Sara Stevens, Andrew Draper, Francisco Garcia Bulle Bueno Ph.D., and Richard P. Reading Ph.D. Caribou Ranch and Duck Lake Open Space Dragonfly conservation program, Hudsonian emerald dragonfly (Somatochlora hudsonica, Hagen), American Emerald (Cordulia shurtleffi), Mountain Emerald (Somatochlora semicircularis), Delonde Ponds, population abundance index, head start program, life cycles, environmental stressors, rearing system
Wildlife Development of Acoustic Classifiers for Boreal Chorus Frogs and American Bullfrogs Grant Report 2023 Kelly Triece, M.S. none (Collected at St Vrain State Park) acoustic classifiers, cluster analysis, Kaleidoscope Pro software, Boreal Chorus Frog (Pseudacris maculata), American Bullfrog (Lithobates catesbeianus), Wildlife Acoustics song meter, pattern recognition, Colorado Parks and Wildlife, indicator species.
Weeds Small Mammal Response to Weed Treatment with Bayer Rejuvra™ Herbicide 2022 Dillon, T. McIntyre, C. Hollenberg, T. Barresi, Cedar Creek Associates, Inc. Ron Stewart Preserve at Rabbit Mountain, Trevarton, Hall Ranch, Bayer Rejuvra™, indaziflam, pre-emergent herbicide, cheatgrass, Bromus tectorum, invasive annual grass, non-target wildlife species, species richness, species diversity, small mammal diversity
Visitor Studies Regional and Neighborhood Trails Visitor Study Report 2022 Staff Various Visitors, Users, Surveys
Visitor Studies 2022 Parks & Open Space Visitation Report 2022 Staff Various Visitors, Users, Trail Counters
Wildlife Butterfly Inventories 2022 Jan Chu Various Inventory Butterflies
Wildlife Survey of Bats at Corona Hill, Hall Ranch: Twin Lakes, Walden Ponds, Overwintering Activity at Ingersol Quarry, High Elevation Building Roosts, and Lefthand Canyon Elevational Transect 2022 Rick A. Adams, PhD Corona Hill, Hall Ranch, Twin Lakes, Walden Ponds, Ingersol Quarry, Lefthand Canyon Bats, Post-Fire, Cal-Wood Fire, Elevational Migration, Overwintering, Abundance, Species Richness, Sonar Survey, Forest Thinning, Foraging Patterns
Wildlife Rearing and assessing populations for the Hudsonian emerald, Mountain emerald, and American emerald at DeLonde Ponds 2022 Sara Stevens, Richard P. Reading Caribou Ranch Odonate, Dragonfly, Rearing, Headstarting, Species Conservation and Recovery Plan, Somatochlora hudsonica, Somatochlora semicircularis, Cordulia shurtleffii
Plant Ecology Assessing the Effects of Cattle Grazing on Riparian Vegetation, Groundwater, and Soils and Implications for Carbon Storage Potential 2022 Esa K. Crumb St. Vrain Creek, Gage grazing, exclosures, wetland, vegetation, riparian, groundwater, carbon storage
Visitor Studies Five-Year Visitor Study 2021 Parks & Open Space Staff Various Visitor experience, demographics, satisfaction survey
Wildlife Butterfly Inventories 2021 Jan Chu Various Inventory Butterflies
Wildlife Study of Bat Populations on BCPOS Properties, Seasonal Migrations, Overwintering Activity, High Elevation Roost Sites, and Effects of the Cal-Wood Burn at Heil Valley Ranch 2021 Rick A. Adams, PhD Various Bats, Post-Fire, Cal-Wood Fire, Elevational Migration, Overwintering, Abundance, Species Richness, Sonar Survey, Forest Thinning, Foraging Patterns
Plant Ecology / Weeds Incorporation of indaziflam (Rejuvra®) into Boulder County Parks and Open Space Weed Management: A Post‐Fire Assessment 2021 Christina Alba, PhD, Michelle DePrenger-Levin Heil Valley Ranch plant community, Rejuvra, herbicide, weed control, fire treatment, Cal-Wood Fire, recruitment, Bromus tectorum, Bromus japonicus, habitat degradation
Forestry Fuels treatments and their impact on carbon stocks and fire severity in Boulder and Jefferson Counties and the city of Boulder 2021 Dr. Brian Buma, Dr. Anthony Vorster, Erin Twaddell Heil Valley Ranch, Jefferson County Open Space, City of Boulder Open Space and Mountain Parks Fire, carbon stocks, fuel treatments, thinning, prescribed burning, Cal-wood, wildfire, remote sensing
Forestry Ashes to asters: the short-term impact of the Cal-Wood Fire on plant communities 2021 Camille Stevens-Rumann and Paula Fornwalt Heil Valley Ranch wildfire, fire recovery, severity, thinning, treatments, plant community, species diversity, management, seeding
Forestry Impacts of pre-fire forest structure and wildfire severity on understory vegetation and tree mortality 2021 Dr. Megan S. Matonis Heil Valley Ranch Wildfire, thinning, prescribed burn, restoration, forest management, fire severity, fire effects, wildfire recovery, tree mortality, understory vegetation, non-native species, species richness
Wildlife Breeding Hudsonian Emerald (Somatochlora hudsonica, Hagen) Under Human Care 2021 Sara Stevens and Richard P. Reading Caribou Ranch Dragonfly, Odonata, Invertebrate, Conservation, Headstarting, Life History, Corduliid
Ecosystems Permeable landscapes for climate change adaptation in and around Boulder and northern Jefferson Counties 2020 Dr. David M. Theobald All properties of Boulder County Parks & Open Space, City of Boulder Open Space and Mountain Parks, and Jefferson County Open Space wildlife connectivity, landscape permeability, climate adaptation, habitat types, habitat fragmentation
Wildlife Butterfly Inventories 2020 Jan Chu Various Inventory Butterflies
Visitor Studies Use Preferences and Visitor Experiences of People with Disabilities on Parks & Open Space 2020 Staff Various amenities, visitation patterns, ADA, Americans with Disabilities Act, parks, trails, trailheads, parking
Ecosystems Impact of Esplanade® Herbicide on Pollinators and Pollinator Resources 2020 Dr. Scott Nissen, Janet Hardin and Dr. Shannon Clark Ron Stewart Preserve at Rabbit Mountain, Colp, Trevarton, Hall Ranch floral visitors, downy brome, indaziflam, bees, pollinator habitat, floral resources
Wildlife Study of Seasonal Altitudinal Migrations, Overwintering Activity Patterns, and Continued Surveys for Bats on Boulder County Open Space 2020 Dr. Rick Adams Heil Valley Ranch, Hall Ranch, Walden Ponds, Twin Lakes, Cardinal Mill, Blue Jay Mine, Platt-Rogers Memorial Park, Rocky Mountain Mammoth, Hall Ranch, Adams-Cowger, and Randolf-Pratt Bats, Elevational Migration, Overwintering, Abundance, Species Richness, Sonar Survey, Forest Thinning, Foraging Patterns
Ecosystems Ecological Status of Lagerman Reservoir 2020 Maggie Anderson, Dr. Sarah Spaulding, Dr. Diane McKnight Lagerman Reservoir Water Quality, Cyanobacteria, Bluegreen Algae, Algal Bloom, Salinity, Ecological Conditions, Fish Kill, Impoundment
Ecosystems Impacts of Cheatgrass on Mammal, Bird, and Butterfly Populations in a Rocky Mountain Foothills Grassland 2020 Anyll Markevich, Stephen R. Jones, and Christel Markevich Heil Valley Ranch Wildlife, habitats, invasive plants
Visitor Studies 2019 Parks & Open Space Visitation Report 2019 Parks & Open Space Staff Various Visitors, Users, Trail Counters
Wildlife Butterfly Inventories 2019 Jan Chu Various Inventory Butterflies
Other Paleontological Survey Summary 2019 Dr. Joseph Sertich Various Dinosaurs, Cretaceous fossils
Ecosystems Effects of fire and thinning disturbances on biodiversity of wild bee communities in the Front Range Colorado 2019 Thomas Seth Davis, Ryleigh Gelles, Boris Kondratieff, Camille Stevens-Rumann Bald Mountain, Gold Hill Area, Hall Ranch, Heil Valley Ranch, Heil Valley Ranch 2 Ecosystem management, biodiversity, community ecology, fire, native bees, ponderosa pine
Ecosystems Plant Inventory: Red Hill Study Area 2019 John Vickery Heil Valley Ranch, Trevarton, Red Hill, North Foothills Open Space Potential Conservation Area, Plant species diversity, Asclepias stenophylla, Carex oreocharis, Claytonia rubra, Crepis atribarba, Helianthus rigidus, Lactuca ludoviciana, Linaria canadensis, robanche multiflora, Physaria belli, Triodanis leptocarpa, Vicia ludoviciana
Visitor Studies Recreation Conflicts Focused on Emerging E-bike Technology 2019 Staff Various Bikes, bicycles, non-motorized passive recreation, accessibility, inclusion
Visitor Studies E-bike Pilot Study Results 2019 Staff Various Bikes, Class 1 and class 2 e-bikes, non-motorized passive recreation
Wildlife Environmental influences on bioturbation and nest architecture of montane ants 2019 Madison Sankovitz Mud Lake, Reynolds Ranch Ants, nests, Formica podzolica, soil, temperature
Visitor Studies Agricultural Heritage Center Visitor Survey 2018 Parks & Open Space Staff Agricultural Heritage Center Visitors, Amenity & Exhibit Preferences, Demographics & Visitation Patterns
Visitor Studies 2018 Parks & Open Space Visitation Report 2018 Parks & Open Space Staff Various Visitors, Users, Trail Counters
Ecosystems Assessing the Potential for Beaver Restoration and Likely Environmental Benefits 2019 Julianne Scamardo and Ellen Wohl Various American Beaver, BRAT Model, Reintroduction, Ecosystem Engineer, Habitat Suitability, Spatial Modeling
Ecosystems Forest Vulnerability to Disturbances 2018 Camille Stevens-Rumann Various Forest management, Wildfire, Anthropogenic Forest Disturbance, Fire Severity, Understory Plant Community
Ecosystems Identifying a mass extinction in Front Range open space: Age & environments of the Lykins Formation 2018 James Hagadorn et al Six Mile Fold, Heil Valley Ranch, Steamboat Mountain Mass extinction, Paleontology, sedimentology, diagenesis, geochemistry, geochronology, Lykins Formation, Boulder County, Front Range
Wildlife Seasonal variation in bee abundances in rangeland ecosystems of the Front Range region is affected by land-use 2018 Khum Thapa-Magar and Thomas S Davis Ron Stewart Preserve at Rabbit Mountain, AHC Rangeland ecosystems, Land Use, Native Bees, Pollinator Biodiversity, Grasslands, Grazing, Invasive Species
Plant Ecology / Weeds Bringing back flowering plants and pollinators through effective control of invasive winter annual grasses with Esplanade® herbicide 2018 Arathi Seshadri and Janet Hardin Ron Stewart Preserve at Rabbit Mountain Esplanade, Invasive Grass, Herbicide, Pollinators, Grasslands, Front Range, Winter Annual, Forbs
Wildlife A qualitative assessment of wild bee habitat features on Boulder County open spaces 2018 Adrian L. Carper Various Riparian pollinators, Downed Wood, St. Vrain Creek, Pollinator Nesting Habitat, Ecological Restoration, Bee Forage, Stream Management, Bee Nesting
Wildlife Habitat Fragmentation Analysis of Boulder County 2018 Paul Millhouser and Paige Singer Various wildlife populations and behavior, human-wildlife conflicts, FRAGSTATS
Wildlife 2018 Butterfly Inventories in Nine Open Space Areas 2018 Jan Chu Various butterflies
Wildlife Report for Continued Surveys for Bats on Boulder County Open Space 2018 Rick A. Adams & Amanda Bevan Various Sonar surveys
Wildlife Herptile Response to a Controlled Burn at Rabbit Mountain Open Space 2018 Hunter Johnson and Joseph Ehrenberger Ron Stewart Preserve at Rabbit Mountain fire effects on amphibians and reptiles,
Wildlife Preliminary assessment of pollinators on Red Wagon Organic Farm and notes on potential conservation practices to promote wild bees 2018 Adrian L. Carper and Tobin J. Hammer Red Wagon Organic Farm pollinators, native bees
Wildlife A study of feral honeybee colonies adaptability to temperature variations relating to their overwintering survivability 2018 Corwin Bell Rock Creek cold weather, pollinators, bees
Wildlife Investigating Bullfrog Management on the Front Range 2018 Kelly Triece, Joseph Ehrenberger, Norma Davenport Various American Bullfrogs, funnel traps, bucket traps, hand-capture, cost-effectiveness, Front Range
Ecosystems Assessment of the Three-Dimensional Structure of Riparian Habitat Along Foothills and Plains Streams 2018 Jessica Salo, Edward Gage, Gabrielle Katz, and Jason Stoker Various Preble’s meadow jumping mouse, LiDAR, riparian, habitat, remote sensing, habitat connectivity
Wildlife The conservation value of woody debris for cavity-nesting bees on Boulder County Open Space 2017 Adrian L. Carper and M. Deane Bowers Various pollinators, riparian areas,
Wildlife Pollinator Habitat Conservation Activity Plan for Boulder County 2017 Jennifer Hopwood, Rae Powers, Scott Black, Xerces Society for Invertebrate Conservation Various pollinators, agriculture, farms
Wildlife Hudsonian Emerald Dragonfly (Somatochlora hudsonica, Hagen) in Boulder County 2017 Kristofor Voss, Katrina Loewy Various dragonfly, aquatic ecosystems,
Ecosystems Influence of Crack Willow on Stream Geomorphology, Wildlife, and Native Plant Community Composition 2017 John Giordanengo Various stream geomorphology, bank erodibility, understory native plant communities, avian community
Forestry Topoclimate effects on growing season length and montane conifer growth in complex terrain 2017 D M Barnard, H R Barnard, and N P Molotch Betasso Preserve forest growth, sapflow, montane ecosystem, complex terrain, growing season length, topoclimate
Visitor Studies Examining Outdoor Recreation Barriers, Amenity Preferences, and Communication and Outreach Needs of the Latino/Hispanic Community 2017 The Department of Human Dimensions of Natural Resources Various survey, demographics, outdoor recreation, park amenity preferences, communication and outreach,
Ecosystems Global Change in Alpine Aquatic Ecosystems 2016 Kelly Loria Mud Lake Alpine lakes, zooplankton, plankton, water chemistry, nitrogen deposition, climate change
Wildlife Butterfly Inventories 2016 Jan Chu Various Inventory Butterflies
Wildlife A pilot study of potential effects of human recreation activity on Abert’s squirrel and dusky grouse in Boulder County 2017 Sarah E. Reed Betasso Preserve, Walker Ranch, Hall Ranch, Heil Valley Ranch recreation activity, wildlife communities, dog policy, mountain biking, hiking
Wildlife Butterfly Inventories 2017 Jan Chu Various Inventory Butterflies
Plant Ecology / Weeds Competition and community interactions of the western tent caterpillar 2016 Elizabeth Barnes Betasso Preserve, Walker Ranch entomology, caterpillar, ecology, pest, chokecherry
Plant Ecology / Weeds Extending the Duration of Annual, Biennial, and Perennial Weed Control with Esplanade Tank Mixes 2016 Derek Sebastian Mayhoffer, Hillside, Kenosha Esplanade, downy brome, Dalmatian toadflax, musk thistle, scotch thistle, diffuse knapweed, moth mullein, weeds, herbicide
Ecosystems Fall 2015 Review of Selected Boulder County Properties Affected by 2013 Floods 2016 Laura Backus Left Hand Creek, Boulder Creek, St. Vrain Creek riparian conditions, vegetation, plant growth
Wildlife A General Herpetofauna Assessment and Mapping of Hibernacula at Rabbit Mountain Open Space 2015 Joseph Ehrenberger, Kevin Urbanek, and Tom Mathies Rabbit Mountain Open Space reptiles, amphibians, lizard, snakes,
Plant Ecology / Weeds Agricultural Practices on Boulder County Open Space: Implications for Pollinator Conservation 2015 C. A. Kearns, D. M. Oliveras, and A. L. Carper Various agricultural properties ag, agricultural, crops, insects, pollinators, bees
Plant Ecology / Weeds Alternative methods for delineating seed transfer zones: comparisons of genetic and common garden data 2015 Taylor Crow and Kristina Hufford Hall Ranch true mountain mahogany,
Visitor Studies Boulder County Fairgrounds 2015 Economic Impact Study 2015 Leeds School of Business, University of Colorado Boulder Fairgrounds buyers, sellers, farmers' market, commerce, exhibits
Wildlife Rabbit Mountain Herp Survey Adaptation Environmental 2015 Unknown Ron Stewart Preserve at Rabbit Mountain Snakes
Ecosystems Evidence for climatic and hillslope-aspect controls on vadose zone hydrology and implications for saprolite weathering 2015 Abigail L. Langston, Gregory E. Tucker, Robert S. Anderson, Suzanne P. Anderson soil moisture, vadose zone, weathering, north and south facing slopes
Ecosystems Exhumation by debris flows in the 2013 Colorado Front Range storm 2015 Scott W. Anderson, Suzanne P. Anderson, and Robert S. Anderson Boulder Creek topographic differencing, aerial lidar, sediment transport volumes, erosion rates
Forestry Fire effects for different slash management techniques in lower montane ponderosa pine forests 2015 Erin Berryman, Michael Battaglia, Chad Hoffman Heil Valley Ranch fire hazard, fuel loads, forest densities
Visitor Studies Five-Year Visitor Study 2015 Parks & Open Space Staff Various Visitor experience, demographics, satisfaction survey
Wildlife Identification of Winter Dens of Prairie Rattlesnakes on Rabbit Mountain Open Space 2015 Tom Mathies, Joseph Ehrenberger, Kevin Urbanek, Bryon Shipley Rabbit Mountain Open Space Prairie Rattlesnakes,
Ecosystems Rapid Stream Stability Assessment Validation Study 2015 Joel Sholtes, John Giordanengo South St. Vrain, Hall-II, St. Vrain Creek, Western Mobile flood restoration, bank stabilization, watershed, riparian, stream bed and stream bank stability
Forestry Recovery of small pile burn scars in conifer forests of the Colorado Front Range 2015 Charles C. Rhoades et al. Various Fuel management, Forest restoration, Soil disturbance, Fire effects, Burn severity, Prescribed fire
Wildlife Report on Census of Bats at Hall Ranch and Continued Research at Heil Valley Ranch and Hall II 2015 Rick Adams Heil Valley Ranch, Hall II sonar survey, brown bats, small-footed myotis
Forestry The role of precipitation type, intensity, and spatial distribution in source water quality after wildfire 2015 Sheila F Murphy, Jeffrey H Writer, R Blaine McCleskey, Deborah A Martin Boulder Creek, Fourmile Creek wildfire, forests, water quality, landscape disturbance, rainfall intensity, climate change, North American Monsoon
Ecosystems 2014 Riparian Inventory and Assessment of Post-Flood Conditions 2014 Laura Backus & Susan Sherrod Left Hand Creek, Boulder Creek, St. Vrain Creek Noxious weeds, hydrology, erosion potential
Wildlife Butterfly Inventories 2014 Jan Chu Various Inventory Butterflies
Visitor Studies Communication Practices Evaluation of Boulder County Parks & Open Space 2014 Blakely & Company Various Visitor experience, communication materials tools
Ecosystems Greenhouse Gas Inventory from Agriculture, Forestry and Other Land Uses for Boulder County 2014 Mark Easter et al. Various greenhouse gas GHG forecast of carbon emissions soil biomass carbon
Ecosystems Pre- and Post-flood Assessment and Monitoring of Boulder County Riparian Areas 2014 Edward Gage & David Cooper Boulder Creek, Lefthand Creek, St. Vrain River Lidar, multispectral imagery, flood,
Wildlife Report on Continued Research on the Effects on Bats of Forest Structure Changes Caused by Fire and Human Manipulation, Dietary and Heavy Metal Contaminant Analyses and Bats at Hall II Property 2014 Rick Adams, University of Northern Colorado Heil Valley Ranch, Hall Ranch II bats, post-flood analysis, forest thinning
Visitor Studies Alternative Day Use at Betasso Preserve 2013 Parks & Open Space Staff Betasso Preserve survey, biking, hiking, running
Visitor Studies Amenity Preferences of Older Adults 2013 Corona Insights recreation amenities, picnic shelters, restrooms, trails
Wildlife Butterflies, Birds and Blossoming Plants... A Continuing Study of Populations On Boulder County Parks and Open Space With A Look at Herptiles 2013 Jan Chu Hall II, Anne U White, Heil Valley Ranch, Reynold's Ranch, Rabbit Mountain, Walker Ranch, Caribou Ranch Butterflies, Herptiles
Ecosystems Critical zone evolution: Climate and exhumation in the Colorado Front Range 2013 Suzanne P. Anderson et al, Institute of Arctic and Alpine Research Boulder Creek, Betasso Preserve erosion, weathering processes, geology
Forestry Historical forest structure and fire history in lower elevation ponderosa pine forests 2013 Peter M. Brown, Michael A. Battaglia, Laurie S. Huckaby, and Paula J. Fornwalt Hall Ranch, and Heil Valley Ranch wildfires, forest conditions
Ecosystems Investigating late Pleistocene and Anthropocene flood deposits along North Boulder and Caribou Creek, Colorado Front Range 2013 Christopher R. Halcsik North Boulder Creek and Caribou Creek Lake Devlin flood deposits Caribou Creek
Forestry Investigations of Mountain Mahogany Establishment 2013 Taylor Crow Hall Ranch shrub True Mountain Mahogany
Wildlife Monitoring Bumblebee Populations in Boulder County 2013 Carol Ann Kearns & Diana Oliveras , University of Colorado Various bumble bees pollinators
Ecosystems Tree root mounds and their role in transporting soil on forested landscapes 2013 Benjamin S. S. Hoffman and Robert S. Anderson Boulder Creek microtopography, biogeomorphology, tree root mounds, mobile regolith transport
Visitor Studies Visitation and Use on Boulder County Regional Trails 2013 Stacey Schulte and Travis Flohr Coal Creek Trail, Rock Creek Trail, Lyons to Boulder LOBO Trail
Forestry Assessing Limber Pine Stand Conditions after White Pine Blister Rust and Mountain Pine Beetle Outbreaks in Boulder County Parks and Open Space 2012 Christy Cleaver and William Jacobi, Colorado State University Pine Beetle, climate change,
Wildlife Butterfly Inventories 2012 Jan Chu Various Inventory Butterflies
Wildlife Conservation Status and Population Structure Comparisons of Abundant and Declining Bumblebee Species 2012 Carol Ann Kearns and Diana Oliveras Minnick, Mud Lake bumblebee, bees
Ecosystems Effects of forest restoration treatments on ponderosa pine ecosystems in Boulder County, Colorado 2012 Jenny Briggs and Paula Fornwalt Hall Ranch, Heil Valley Ranch ponderosa, forest, lower montane, restoration, treatment
Wildlife Habitat Use of Northern Leopard Frogs in the Front Range 2012 Maxwell B Joseph & Pieter TJ Johnson Mayhoffer, Hodgeson Harris Reservoir water bodies, buffer zones,
Plant Ecology / Weeds Impacts of seeding and seeding plus mulching treatments on exotic plant invasion and native plant recovery following the 2010 Fourmile Canyon Fire, Colorado 2012 Paula J. Fornwalt, USDA Forest Service Fourmile Fire Area seeding, mulching, fire, rehabilitation
Forestry Modeling of the Effects on Bats of Forest Structure Changes Caused by Fire and Human Manipulation 2012 Rick A. Adams & Katelin Craven Heil Valley Ranch bats, burned, fire, forest, meadows
Visitor Studies Regulation Compliance Study 2012 Parks & Open Space Staff demographics, satisfaction, five year study, visits, visitors
Plant Ecology / Weeds Synthesis of Observations to Date on Effects of Prairie Dogs on Vegetation of Boulder County Open Space: 2001 to 2011 2012 Parks & Open Space Staff Various black-tailed prairie dogs, vegetation, plague,
Wildlife Butterfly Inventories 2011 Jan Chu Various Inventory Butterflies
Wildlife Conservation Status and Population Structure Comparisons of Abundant and Declining Bumblebee Species 2011 Carol Ann Kearns Minnick, Mud Lake bumblebee, bees
Ecosystems Distribution of an invasive species and an amphibian pathogen in the Front Range of Colorado 2011 Anna C. Peterson, University of Colorado Various bullfrogs, wetlands
Wildlife Seasonal Variation in Wildlife Community Dynamics in Relation to Urbanization and Human Activities on the Front Range 2011 Jesse Lewis, Colorado State University Various bobcats, mountain lions, domestic cats
Plant Ecology / Weeds Sustainable Agriculture Literature Review 2011 Natural Capitalism Solutions cropland policy ag production systems
Ecosystems Using the Lichen Xanthoparmeila to Monitor Concentrations of Nitrogen in Urban and Wilderness Environments 2011 Joseph Arehart Heil Valley Ranch, Betasso Preserve, Walker Ranch atmosphere pollutants, lichens, nitrogen concentrations
Ecosystems Year End Report: Host plant choice in Fall Webworms (Hyphantria cunea Drury) 2011 Katrina Loewy, University of Denver Betasso Preserve moths, larvae, trees, caterpillars,
Wildlife Boulder County Bumblebees: Population monitoring and conservation genetics 2010 Carol Ann Kearns and Diana Oliveras Minnick, Mud Lake bumblebee, bees,
Wildlife Butterfly Inventories 2010 Jan Chu Various Inventory Butterflies
Wildlife Changes in Avian Species Composition in a Riparian Habitat 2010 Mysti Martin Allegra Collister Nature Preserve Long-term Bird Banding Data
Forestry Effects of Mechanical Thinning, Fire, and Mastication on the Spatial Structure of the Forest Floor 2010 Scott Franklin, University of Northern Colorado, School of Biological Sciences Heil Valley Ranch mechanical thinning, mastication, fire, fuels, soil, vegetation
Visitor Studies Five-Year Visitor Study 2010 Parks & Open Space Staff Various Visitors Users Recreation
Forestry The susceptibility of ponderosa pine to mountain pine beetle in the Colorado Front Range 2010 Meredith H. Gartner Various Mountain pine beetle
Plant Ecology / Weeds AFLP Evaluation of Genomic Variation and Population Structure in Andropogon gerardii 2009 Ryan Lynch Multiple Plant Studies Big Bluestem
Ecosystems CZO: Boulder Creek Critical Zone Observatory - Weathered Profile Development in a Rocky Environment and Its Influence on Watershed 2009 Susanne Anderson, University of Colorado Boulder Betasso critical zone weathering erosion processes
Ecosystems Impact of ponderosa pine thinning on Abert’s squirrel (Scuirus aberti) populations on Heil Valley Ranch 2009 Kelly Worden, Regis, Science Dept Heil Valley Ranch Forest Thinning Aberts Squirrel
Wildlife Inventory of Butterflies in Boulder County 2009 Jan Chu Multiple Inventory Butterflies
Wildlife Landscape Effects on Disease and Demography in the Blacktailed Prairie Dog, Cynomys ludovicianus 2009 Katherine McClure, CU Boulder, Dept of Ecology and Evolutionary Biology Multiple Plague Prairie Dog
Plant Ecology / Weeds Managing Downy Brome Seed Production and Litter to Exhaust its Soil Seed Reserve 2009 George Beck, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Multiple Weed Control Downy Brome
Plant Ecology / Weeds Slash pile burn scar restoration in montane forests of Boulder County, Colorado 2009 Paula J. Fornwalt and Chuck R. Rhoades, USDA Forest Service Reynolds Ranch slash piles, soils, plants, fires,
Ecosystems The Effects of Elevation and Associated Environmental Conditions on the Roosting Behavior of Five Species of Myotis Bats and Continued Analysis of Bat Species Abundance and Reproduction at Heil and Caribou. 2009 Mathew Willey, UNC Greeley, School of Biological Sciences Multiple Environmental Bats
Wildlife Butterfly Inventory of the Benjamin Property 2008 Jan Chu Benjamin Inventory Butterflies
Plant Ecology / Weeds Establishing Native Plants on Abandoned Farmland 2006-2008 2008 Cynthia Brown, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Rabbit Mountain Survey Visitor Demographics
Plant Ecology / Weeds Boulder County Diffuse Knapweed Mapping and Biocontrol Agent Report 2008-2009 Phil Westra, PhD, Andrew Norton, PhD, and Melissa Bridges, PhD Student – Colorado State University Various invasive weeds, biocontrol insects, Sphenoptera
Forestry Impacts of woodchip amendments and soil nutrient availability on patterns of understory vegetation establishment following thinning of a ponderosa pine forest 2008 Elisa Miller, CU Boulder, Dept of Ecology and Evolutionary Biology Heil Valley Ranch Forest Management Understory Vegetation
Visitor Studies Latino and Hispanic Perceptions 2008 Abby Hickcox, CU Boulder, Dept of Geography Multiple
Wildlife Mammal and Flea Occurrence in Association with Black-tailed Prairie Dog (Cynomys ludovicianus) Colonies: Implications for Interspecific Plague Transmission 2008 Robert Brinkerhoff, CU Boulder, Dept of Ecology and Evolutionary Biology Multiple Survey
Visitor Studies Natural and Cultural History Programs: A Survey of Participants from 2006 to 2008 2008 Parks & Open Space Staff Various Natural Cultural History Programs
Ecosystems Ponderosa Pine Thinning on Aberts Squirrel 2008 Kelly Worden, Regis, Science Dept Heil Valley Ranch Cattle Weed Control Diffuse Knapweed
Forestry Rehabilitating Slash Pile Burn Scars In Upper Montane Forests 2008 Paula Fornwalt, USDA Forest Service, Rocky Mountain Research Station Multiple Native Plants
Ecosystems Stopover Use of Thinned vs Unthinned Ponderosa Pine Forests by Neo-tropical Migrant Passerines 2008 Clark Rushing Multiple Forest Thinning Aberts Squirrel
Ecosystems Survey of Critical Biological Resources in Boulder County 2008 Stephanie Neid, Colorado State University, Colorado Natural Heritage Program Multiple Survey Visitor Demographics
Visitor Studies Walker Ranch Management: A Survey of Visitors and Neighboring Landowners at Walker Ranch Open Space 2008 Parks & Open Space Staff Walker Ranch Walker Ranch Visitors
Plant Ecology / Weeds We'd Eat It! 2008 Kathy Voth, Livestock for Landscapes, LLC Cohig Survey Resources
Ecosystems Bat Species Abundance and Distribution, the Effects of Forest Thinning and Burning on Bat Foraging Activities and Incidence of West Nile Infection in Bats, and Calcium Water Hole Experiments at Heil Valley Ranch, 2007 2007 Rick Adams, Colorado Bat Society Heil Valley Ranch Survey Resource Management Policy
Plant Ecology / Weeds Broadleaf Rangeland Herbicide Effects on Established and Seedling Native Forbs, Shrubs, and Grasses 2007 George Beck, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Multiple Forest Thinning Bats
Plant Ecology / Weeds Eldorado Fire at Walker Ranch: Vegetation Reestablishment Monitoring 2007 2007 Patrick Murphy, Ecotone Corporation Walker Ranch Plague Prairie Dog
Plant Ecology / Weeds Establishing Native Plants on Abandoned Farmland at Rabbit Mountain Open Space (Cemex): Year 2 2007 Cynthia Brown, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Rabbit Mountain Weed Control Kochia
Plant Ecology / Weeds Evaluation of the Potential for Teaching Cattle to Graze Late Season Diffuse Knapweed 2007 Kathy Voth, Livestock for Landscapes, LLC Mayhoffer/Singletree Prescribed Burn Tree Regeneration
Wildlife Life after Plague: Black-tailed Prairie Dog Demography in Repopulated Colonies 2007 Katherine McClure, CU Boulder, Dept of Ecology and Evolutionary Biology Multiple Native Plants
Visitor Studies Managing Your Natural Resources - Living Near Boulder County Parks and Open Space Forest Ecosystems 2007 Parks & Open Space Staff Forest Management Policy
Ecosystems Mechanical Thinning Effects on Herbaceous Species Distributions and Invasion Pathways in Ponderosa Pine Forests of Boulder County, CO. 2007 Brett Wolk, CSU Fort Collins, Dept of Forest, Rangeland and Watershed Stewardship Various Fire Vegetation Reestablishment
Plant Ecology / Weeds Analysis of Canada Thistle Biomass Reduction from NOP Approved Non-Tillage/Cultivation Control Methods 2006 Adrian Card, CSU Extension, Cooperative Extension Pachamama Organic Farm Weed Control Canada Thistle
Ecosystems Bat Species Abundance and Distribution, the Effects of Forest Thinning and Burning on Bat Foraging Activity, Incidence of West Nile Virus in Bats, and Calcium Water Hole Experiments at Heil, 2006. 2006 Rick Adams, University of Northern CO, Dept of Biological Sciences Heil Valley Ranch Forest Thinning Bats
Plant Ecology / Weeds Boulder County Weed Mapping Project: Species Base Maps 2006 Phil Westra, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Various Forest Thinning Understory Vegetation
Plant Ecology / Weeds Broadleaf Rangeland Herbicide Effects on Established and Seedling Native Forbs, Shrubs, and Grasses 2006 George Beck, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Multiple Weed Control Kochia
Wildlife Butterfly Inventory and Research on Open Space Properties 2006 Jan Chu Multiple Inventory Butterflies
Wildlife Effects of Dogs on Wildlife 2006 Ben Lenth, CSU Fort Collins, Dept of Ecology and Dept of Forest, Rangeland and Watershed Stewardship Multiple Forest Thinning Understory Vegetation
Forestry Effects of Forest Thinning and Chipping on Soil Properties and Understory Vegetation at Heil Valley Ranch 2006 Elisa Miller, CU Boulder, Dept of Ecology and Evolutionary Biology Heil Valley Ranch Weed Mapping
Forestry Effects of Thinning and Chipping on Tree Regeneration and Understory Plant Communities in a Ponderosa Pine Forest. 2006 Brett Wolk, CSU Fort Collins, Dept of Forest, Rangeland and Watershed Stewardship Heil Valley Ranch
Plant Ecology / Weeds Establishing Native Plants on Abandoned Farmland at Rabbit Mountain Open Space (Cemex): Year 1 2006 Cynthia Brown, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Rabbit Mountain Native Plants
Plant Ecology / Weeds The Role of Soil Nitrogen Availability of the Defensive Chemistry of an Invasive Plant Linaria Dalmatica Scrophulariaceae 2006 Mary Jamieson, CU Boulder, Dept of Ecology and Evolutionary Biology Multiple Survey Dogs
Wildlife An Inventory of Butterflies on Open Space Properties 2005 Jan Chu Multiple Inventory Butterflies
Ecosystems Bat Species Abundance and Distribution, the Effects of Forest Thinning and Burning on Bat Foraging Activities and Incidence of West Nile Infection in Bats, and Calcium Water Hole Experiments at Heil Valley Ranch 2005 Rick Adams, University of Northern CO, Dept of Biological Sciences Heil Valley Ranch Survey Visitor Demographics
Visitor Studies Five-Year Visitor Study 2005 Parks & Open Space Staff Betasso Preserve Survey Adjacent Landowners
Plant Ecology / Weeds Kochia Control to Aid Establishment of Perennial Grasses and Forbs 2005 George Beck, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Multiple Forest Thinning Bats
Visitor Studies Nature as Your Neighbor: Results of the 2005 Survey of Adjacent Landowners 2005 Stacey Schulte, Planning Alternatives Multiple
Plant Ecology / Weeds The Effects of a Fall and Spring Prescribed Burn on the Control of Cheatgrass and Japanese Brome at Rabbit Mountain Open Space 2005 Michelle DePrenger-Levin, Denver Botanic Gardens Rabbit Mountain Prescribed Burn Japanese Brome
Wildlife An Inventory of Butterflies - Heil Valley Ranch Open Space 2002 - 2004 and Caribou Ranch Open Space 2004 2004 Jan Chu Multiple Inventory Butterflies
Ecosystems Bat Species Abundance and Distribution, the Effects of Forest Thinning and Burning on Bat Foraging Activity and Incidence of West Nile Infection in Bats at Heil Valley Ranch, 2004 2004 Rick Adams, UNC Greeley, Dept of Biological Sciences Heil Valley Ranch Survey Dogs
Wildlife Effects of Dogs on Wildlife Communities 2004 Ben Lenth, CSU Fort Collins, Dept of Ecology and Dept of Forest, Rangeland and Watershed Stewardship Multiple Habitat Fragmentation Bees
Ecosystems Effects of Forest Management, Trail Use and Wildfire on Ponderosa Pine Forest Birds on Heil Ranch, Boulder County Open Space 2004 Alexander Cruz, CU Boulder, Dept of Environmental, Population and Organismic Biology Heil Valley Ranch
Plant Ecology / Weeds Management Strategies for the Establishment of Warm and Cool Season Grasses in Downy Brome Infested Rangeland 2004 George Beck, Colorado State University, Dept of Bioagricultural Sciences and Pest Management Multiple Forest Thinning Bats
Ecosystems Pollination in an Urbanizing Landscape: Effects of Habitat Fragmentation on Wild Bee Assemblages 2004 Sarah Jack Hinners, CU Boulder, Dept of Ecology and Evolutionary Biology and CIRES Multiple Prescribed Burn Japanese Brome
Wildlife Spatial Patterns of Historical Plague Incidence on Black-tailed Prairie Dog (Cynomys Ludovicianus) Colonies 2004 Amelia Markeson, CU Boulder, Dept of Ecology and Evolutionary Biology Multiple Survey Dogs
Plant Ecology / Weeds The Effects of Fall and Spring Prescribed Burns on the Control of Cheatgrass and Japanese Brome at Rabbit Mountain Open Space 2004 Michelle DePrenger-Levin, Denver Botanic Gardens Rabbit Mountain Forest Management Ponderosa Pine
Visitor Studies Visitor Support for Dog Restriction at Heil Valley Ranch, Hall Ranch and Rabbit Mountain 2004 Parks & Open Space Staff Heil Valley Ranch, Hall Ranch, Rabbit Mountain Dogs Dog Walking
Wildlife Butterfly Survey 2003 Jan Chu Heil Valley Ranch Inventory Butterflies
Visitor Studies Characteristics and Preferences of Mountain Bikers on Boulder County Parks and Open Space 2003 Stacey Schulte, Planning Alternatives Multiple Survey Mountain Bikes
Ecosystems Continued Study of Bat Abundance and Distribution at Heil Valley Ranch and the Effects of Forest Thinning on Bat Foraging Activities in Foothills Ecosystems 2003 Rick Adams, University of Northern CO, Dept of Biological Sciences Heil Valley Ranch Survey Mountain Bikes
Ecosystems Eastern Colorado Paleoenvironment 2003 Kevin Gilmore, University of Denver, Dept of Geography Mud Lake
Ecosystems Effects of Forest Management and Trail Use on Ponderosa Pine Forest Birds on Heil Ranch, Boulder County Open Space 2003 Alexander Cruz, CU Boulder, Dept of Environmental, Population and Organismic Biology Heil Valley Ranch Weed Control Downy Brome
Forestry Feasibility Study of a Biomass Energy System for Boulder County Parks Department 2003 McNeil Technologies, Inc. Various bio mass heating wood fuel boiler
Plant Ecology / Weeds Management Strategies for the Establishment of Warm and Cool Season Grasses in Downy Brome Infested Rangeland 2003 George Beck, CSU Fort Collins, Dept of Bioagricultural Sciences and Pest Management Multiple Survey Recreation Conflict
Visitor Studies Mountain Bike Use and Compliance on the Canyon Loop Trail at Betasso Preserve 2003 Parks & Open Space Staff Betasso Preserve Visitors Users Recreation Biking Hiking
Visitor Studies Recreation Conflict at Six BCPOS Properties: A Baseline Study 2004 Parks & Open Space Staff Betasso Preserve Visitor Conflicts Equestrians Dogs Hiking Bike
Plant Ecology / Weeds The Effects of a Fall verses Spring Prescribed Burn on the Control of Cheatgrass and Japanese Brome at Rabbit Mountain Open Space 2003 Michelle DePrenger-Levin, Denver Botanic Gardens Rabbit Mountain PaleoEcology
Plant Ecology / Weeds The Use of Mycorrhizal Fungi in Restoration of Highly Disturbed Soils at Heil 2003 2003 Michelle DePrenger-Levin, Denver Botanic Gardens, Research and Conservation Department Heil Valley Ranch Scent Stations Predators
Wildlife Utilization of Scent-Station Surveys to Determine Predator Abundance and Spatial Use on Caribou Ranch Open Space (2nd Year of Baseline for Response to Recreation) 2003 Bill Given, Western Wildlife Institute Multiple Forest Management Ponderosa Pine
Wildlife Butterfly Survey at Heil 2002 Jan Chu Heil Valley Ranch Inventory Butterflies
Ecosystems Effects of Forest Management and Trail Use on Ponderosa Pine Forest Birds on Heil Ranch. 2002 Alexander Cruz, CU Boulder, Dept of Environmental, Population and Organismic Biology Heil Valley Ranch Forest Management Ponderosa Pine
Plant Ecology / Weeds Eldorado Fire at Walker Ranch Vegetation Reestablishment Monitoring 2002 2003 Patrick Murphy, Ecotone Corporation Walker Ranch Wildfire Effects Montane Zone
Wildlife Final Report: Census and Radio Telemetry of Bats at Heil Valley Ranch 2002 2002 Rick Adams, Colorado Bat Society Heil Valley Ranch Radio Telemetry Bats
Wildlife Patterns of Small Mannal Species Richness and Abundance on Prairie Dog Colonies of Various Densities 2002 Eric Stone, CU Boulder, Dept of EPO Biology Multiple Fire Vegetation Reestablishment
Forestry The Historic Range of Variability of Fire in the Montane Zone: Past Fire Types and Fire Effects. 2002 Rosemary Sherriff, CU Boulder, Dept of Geography Multiple Species Richness Prairie Dog
Plant Ecology / Weeds The Use of Mycorrhizal Fungi in Restoration of Highly Disturbed Soils 2002 Michelle DePrenger-Levin, Denver Botanic Gardens Heil Valley Ranch Revegetation Mycorrhizal Fungi
Wildlife Utilization of Scent-Station Surveys to Determine Predator Abundance and Spatial Use on Caribou Ranch (Baseline for Response to Recreation) 2002 Bill Given, Colorado Urban Wildlife Institute Multiple Scent Stations Predators
Ecosystems Effects of Thinning, Prescribed Burning, and Trail Use on Ponderosa Pine Forest Birds on Heil Ranch 2001 2001 Alexander Cruz, CU Boulder, Dept of Environmental, Population and Organismic Biology Heil Valley Ranch Prescribed Burn Ponderosa Pine
Forestry Effects of Wildfire on Ponderosa Pine Ecosystems at Walker Ranch 2001 Eric Petterson, WP Natural Resource Consulting, Inc. Walker Ranch Wildfire Effects Ponderosa Pine
Wildlife Monitoring of Prairie Dogs on Boulder County Open Space 2001 2001 Carron Meaney Multiple Prairie Dog
Ecosystems Spiranthes diluvialis Habitat Assessment and Survey Report 2001 Leigh Rouse, ERO Resources Corporation Gage-Marlatt Ute ladies' -tresses orchid
Ecosystems Revegetation Experiment in an Active Prairie Dog Town, Second Year Monitoring Report 2001 Patrick Murphy, Ecotone Corporation Kenosha Revegetation Prairie Dog
Wildlife Breeding Bird Survey Mud Lake Open Space 2000 Dave Hallock Mud Lake Avian Species of Special Concern, ringnecked duck, pygmy nuthatch, golden-crowned kinglet, MacGillivray's warbler and western tanager
Ecosystems Effects of Prescribed Burning and Trail Use on Ponderosa Pine Forest Birds on Heil Ranch. Analysis of Pre-treatment Years (1999-2000). 2000 Alexander Cruz, CU Boulder, Dept of Environmental, Population and Organismic Biology Heil Valley Ranch Prescribed Burn Ponderosa Pine
Ecosystems First Year Community Analysis for Prescribed Fire Sites 2000 Eric Petterson, WP Natural Resource Consulting, Inc. Multiple Prescribed Burn
Ecosystems Forest Fire Effects on Benthic Invertebrate Populations 2000 Nada Sroysaard Walker Ranch Fire Benthic Invertebrates
Wildlife Monitoring of Prairie Dogs on Boulder County Open Space 2000 2000 Carron Meaney Multiple Prairie Dog
Ecosystems Revegetation Experiment in an Active Prairie Dog Town with Vegetation Graphics 2000 Patrick Murphy, Ecotone Corporation Kenosha Revegetation Prairie Dog
Wildlife Utilization of Scent-Station Surveys to Determine the Response of Predators to Recreation on Heil Ranch. 2001 Bill Given, Colorado Urban Wildlife Institute Heil Valley Ranch Scent Stations Predators

Contact Us

Parks & Open Space

Mac Kobza
mkobza@bouldercounty.gov
303-678-6203