California mixed evergreen forest

The mixed evergreen forests of the Klamath Mountains-Siskiyou Mountains occur above 300 meters (1000 ft) elevation, and are of four main types.

Douglas-fir forests are found on gentle slopes, north-facing slopes, ridges with deep soil, and river terraces with deep sediments, usually underlain with sedimentary rocks.

Mountains in the San Francisco Bay Area frequently support mixed evergreen forests.

Common wildlife include Steller's jay, chestnut-backed chickadee, western gray squirrel, raccoon and many others.

The predominance of broadleaf trees provide a greater abundance of food sources.