Bear Creek (Colusa County)

Bear Creek is one of two primary tributaries to Cache Creek in the U.S. state of California, the other being the North Fork of Cache Creek. It is the only tributary to Cache Creek not impounded by a dam; the North Fork is impounded by Indian Valley Dam and Reservoir, while the Cache Creek main stem is impounded by Cache Creek Dam.

Bear Creek
Bear Creek as it flows through the Bureau of Land Management's Cache Creek Natural Area
Location of the river mouth in California
Location
Country	United States
State	California
Region	Colusa County (Cache Creek Watershed)
Physical characteristics
Source	Mill Creek (Mendocino National Forest)
• elevation	3,830 ft (1,170 m)
2nd source	Bear Creek
• elevation	2,212 ft (674 m)
Source confluence	Bear Valley
• elevation	1,331 ft (406 m)
Mouth	Cache Creek
• location	Cache Creek Canyon
• coordinates	38°55′35″N 122°20′0″W
• elevation	641 ft (195 m)
Length	30 mi (48 km)
Basin size	130 sq mi (340 km2)
Discharge
• location	Holsten Chimney Canyon Stream Gauge , CA
• average	37.5 cu ft/s (1.06 m3/s)
• minimum	0 cu ft/s (0 m3/s)
• maximum	8,510 cu ft/s (241 m3/s)
Basin features
Tributaries
• left	Sulphur Creek, Trout Creek

Because of elevated mercury levels in fish, the California Office of Environmental Health Hazard Assessment recommends that no one eat fish or shellfish from this water body.

Watershed

Western Pond Turtle in Bear Creek

Aerial view of Bear Creek and Bear Valley Road from the west

Bear Creek begins within Bear Valley and flows south for approximately 25 miles draining a watershed of 130 square miles in the lower elevations of the Inner Coastal Range entirely in Colusa County. Bear Creek terminates at the confluence of Cache Creek just before crossing the Yolo County line in Cache Creek Canyon.

Wildlife

Bear Creek provides a perennial habitat for fish to navigate throughout the year. By far the most common fish found in Bear Creek is the native California roach. The creek also provides habitat for a wide assortment of other creatures including amphibians such as the western pond turtle and other water-based organisms. Due to its perennial nature, Bear Creek also provides a reliable water supply to other creatures, thereby attracting large mammals such as deer and the Native California tule elk.