Rivers of Lake County, California

Lake County covers about 1,261 square miles (3,270 km2) in the California Coastal Range.

The lake rose again, and created its present outlet via Cache Creek to the Sacramento River.

Diverted flows supplement Russian River water supplies in Mendocino and Sonoma Counties.

The streams flow over permeable geologic formations and percolate into the subsurface as groundwater recharge.

[9] Cache Creek drains Clear Lake and flows eastward into Yolo County, then into the Sacramento River.

[9] Cache Creek has two major reaches in Lake County: the north fork and the main branch.

The main branch drains Clear Lake and flows eastward into Yolo County.

[12] Clear Lake and the Indian Valley Reservoir heavily influence the flow characteristics of Cache Creek.

The Putah Creek drainage mostly consists of direct rainfall runoff with a very little snowmelt and base flow.

The Putah Creek basin in Lake County has no reservoirs to provide surface storage and regulate flows.

Stony Creek is a tributary of the Sacramento River that drains a small part of northeast Lake County Unless otherwise stated, the information above is derived from an extract from the GNIS database of features of class "stream" in Lake County, California.