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X-ORIGINAL-URL:https://bouldercounty.gov
X-WR-CALDESC:Events for Boulder County
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DTSTART;TZID=America/Denver:20261003T090000
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DTSTAMP:20260824T205348Z
CREATED:20250902T165752Z
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UID:10000999-1791018000-1791028800@bouldercounty.gov
SUMMARY:Take a Kid Mountain Biking Day
DESCRIPTION:Join the Boulder Mountainbike Alliance and Boulder County Parks & Open Space for a morning of riding the beginner and kid friendly trails at Heil Valley Ranch. This event will have mini-skills clinics\, route suggestions\, bike decorating materials\, and educational information. \n\n\n\nThis event is recommended for families with kids ages 3 to 10.\nFree loaner kids’ mountain bikes and helmets will be available\, or you can bring your own mountain bike and helmet.\nGuided rides with Boulder Mountainbike Alliance for all ages start at 9:30 and depart every half hour.\nCome anytime between 9 a.m. to noon for bike decorating and independent exploration of the trails.\nChildren must be accompanied by an adult.\nDon’t forget to stop by the Altona Schoolhouse where volunteers will be on hand to share the school’s history and restoration with visitors.\n\n\n\nRegistration required. \nRegister
URL:https://bouldercounty.gov/event/take-a-kid-mountain-biking-day/
LOCATION:Heil Valley Ranch – Corral Trailhead\, 250 Geer Canyon Rd.\, Boulder\, CO
CATEGORIES:Hikes & Events,Parks & Open Space
ORGANIZER;CN="Michelle Marotti":MAILTO:mmarotti@bouldercounty.gov
GEO:40.134993;-105.297956
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Heil Valley Ranch – Corral Trailhead 250 Geer Canyon Rd. Boulder CO;X-APPLE-RADIUS=500;X-TITLE=250 Geer Canyon Rd.:geo:-105.297956,40.134993
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BEGIN:VEVENT
DTSTART;TZID=America/Denver:20261003T090000
DTEND;TZID=America/Denver:20261003T120000
DTSTAMP:20260825T194721Z
CREATED:20260825T071711Z
LAST-MODIFIED:20260825T194721Z
UID:10004388-1791018000-1791028800@bouldercounty.gov
SUMMARY:Altona School Open House
DESCRIPTION:Drop by anytime between 11 a.m. and 2 p.m. to go inside the historic Altona Schoolhouse where students studied and played from 1880 to the World War II era. Volunteers will be on hand to share the school’s history and restoration with visitors. If time allows\, you can take part in a game or spelling bee.
URL:https://bouldercounty.gov/event/altona-school-open-house-11/
LOCATION:Altona Schoolhouse
CATEGORIES:Hikes & Events,Parks & Open Space
ORGANIZER;CN="Sheryl Kippen":MAILTO:skippen@bouldercounty.gov
GEO:40.132179;-105.298169
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Denver:20261003T100000
DTEND;TZID=America/Denver:20261003T170000
DTSTAMP:20260821T164254Z
CREATED:20260629T070305Z
LAST-MODIFIED:20260821T164254Z
UID:10004019-1791021600-1791046800@bouldercounty.gov
SUMMARY:AHC Open
DESCRIPTION:The Agricultural Heritage Center is open 10 a.m. – 5 p.m. \nApril 1 to Oct. 31\nFriday:10 a.m. – 5 p.m.\nSaturday:10 a.m. – 5 p.m.\nSunday:10 a.m. – 5 p.m. \nHolidays\nCLOSED Friday\, June 19 (Juneteenth)\nCLOSED Friday\, July 3 (Independence Day observed)\nOPEN Saturday\, July 4 \nNov. 1 to March 31\nThe first Saturday of the month\n10 a.m. – 5 p.m.
URL:https://bouldercounty.gov/event/ahc-open/2026-10-03/
LOCATION:Agricultural Heritage Center\, 8348 Ute Hwy\, Longmont\, CO\, 80503
CATEGORIES:Ag Heritage Center
GEO:40.20296469;-105.1576138
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Agricultural Heritage Center 8348 Ute Hwy Longmont CO 80503;X-APPLE-RADIUS=500;X-TITLE=8348 Ute Hwy:geo:-105.1576138,40.20296469
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BEGIN:VEVENT
DTSTART;TZID=America/Denver:20261003T103000
DTEND;TZID=America/Denver:20261003T120000
DTSTAMP:20260825T194618Z
CREATED:20260825T071713Z
LAST-MODIFIED:20260825T194618Z
UID:10004389-1791023400-1791028800@bouldercounty.gov
SUMMARY:The Geology of Sandstone Ranch
DESCRIPTION:Discover Sandstone Ranch through a guided one-mile geology walk that brings 70 million years of history to life. Explore ancient beach sands\, shallow-sea fossils\, glacial deposits\, and striking Fox Hills Sandstone cliffs while learning how rising mountains\, shifting shorelines\, and powerful floods shaped today’s landscape. Along the way\, see oyster beds\, trace fossils\, and evidence of past glaciers\, and enjoy stories connecting geology\, local history\, and the ever-changing St. Vrain Valley. \nRegistration required. \nRegister
URL:https://bouldercounty.gov/event/the-geology-of-sandstone-ranch-2/
LOCATION:Sandstone Ranch\, 3001 CO-119\, Longmont\, CO\, 80504
CATEGORIES:Hikes & Events,Parks & Open Space
ORGANIZER;CN="Carlos Lerma":MAILTO:clerma@bouldercounty.gov
GEO:40.15963;-105.040993
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Sandstone Ranch 3001 CO-119 Longmont CO 80504;X-APPLE-RADIUS=500;X-TITLE=3001 CO-119:geo:-105.040993,40.15963
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DTSTART;TZID=America/Denver:20261003T120000
DTEND;TZID=America/Denver:20261003T150000
DTSTAMP:20260825T194539Z
CREATED:20260825T071714Z
LAST-MODIFIED:20260825T194539Z
UID:10004390-1791028800-1791039600@bouldercounty.gov
SUMMARY:Small Engine Day
DESCRIPTION:Step back in time and explore the fascinating world of early small engines — also known as hit-or-miss or skip motors — that once powered farms\, mines\, and more. Watch these historic machines in action\, including a museum model that’s more than 100 years old. Learn how they worked\, what made them so reliable\, and why they were essential to everyday life. Drop in anytime during the event — no registration required!
URL:https://bouldercounty.gov/event/small-engine-day-oct-3/
LOCATION:Nederland Mining Museum\, 200 N. Bridge Street\, Nederland\, CO\, 80466
CATEGORIES:Hikes & Events,Parks & Open Space
GEO:39.962708;-105.510559
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Nederland Mining Museum 200 N. Bridge Street Nederland CO 80466;X-APPLE-RADIUS=500;X-TITLE=200 N. Bridge Street:geo:-105.510559,39.962708
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