Download a professional PDF field guide featuring all the species found in Boulder Open Space and Mountain Parks. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 80 total documented species.

Beargrass
Pillbug

Greek Milkweed
Canada Goose
Mullein
Mallard

American Robin

Red-Cedar

Chokecherry

Stonewall Rim Lichen


Field Bindweed Moth
Red-Winged Blackbird

Codling Moth

Balkan Toadflax

Sand-Lily
Honeybee

Black-Billed Magpie
Cat Squirrel
Get all 80 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Boulder County County, Colorado
These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Boulder County County.
The Boulder Open Space And Mountain Parks ecosystem supports 80 documented wildlife species across 73 taxonomic genera. Located in Boulder County, Colorado, this area provides critical habitat with diverse natural communities. The location hosts 17 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife.