Stage 1 Fire Restrictions, effective Aug. 12, 2025, for unincorporated western Boulder County.
Visit the Boulder County Ballot Measures website for information about possible 2025 ballot measures.
- This event has passed.
City Nature Challenge iNaturalist Bioblitz
Join volunteer naturalists on a memorable nature hike to find and report plants and animals around Harney-Lastoka and Coal Creek Trail as part of the City Nature Challenge. The City Nature Challenge is an international effort for people to find and document plants and wildlife in cities across the globe. It’s a bio-blitz-style competition where cities are in a friendly contest to see who can report the most observations in nature, who can find the most species, and who can engage the most people.
Join us at the Harney-Lastoka community gardens and bring a camera or smartphone with the iNaturalist app ready to use!
Registration for most programs begins on the 20th of the month before the event.
Registration required.
Registration is required through Discover Boulder County, Parks & Open Space’s volunteer and event registration system. If you’re new to the system, you’ll need to create an account. But it’s easy and we only use your contact information to communicate about events you register for. We will never sell or give your information to a third party.