Download a professional PDF field guide featuring all the species found in Arnold. Perfect for outdoor adventures, education, and nature exploration.
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Compared to 8 nearby locations in Calaveras County County, California
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 Calaveras County County.
Showing 20 most frequently observed species out of 79 total documented species.

Bigtree

Mountain Misery

Pacific Dogwood

Douglas Squirrel
Sugar Pine

Kellogg Oak

American Trailplant

Pine Violet
Pacific Starflower
White Cedar

Indian-Rhubarb

Wild Strawberry
Convergent Lady Beetle
Sitka Columbine

Pacific Yew

Sierra Iris

Mountain Pink Currant

Beaked Hazel
Get all 79 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
The Arnold ecosystem supports 79 documented wildlife species across 68 taxonomic genera. Located in Calaveras County, California, this area provides critical habitat with diverse natural communities. The location hosts 16 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Calaveras County, Arnold hosts 8% more species diversity.