Polk Springs District

This is a small placer-mining district in eastern Tehama County just south of Polk Springs. It is about 30 miles east-southeast of Red Bluff. Some gold was recovered by hydraulicking years ago, the last work apparently having been done in the 1930s. The deposit consists of gravels up to 50 feet in thickness that contain pebbles of quartz, granitic rocks, and volcanic rocks. Bedrock is schist, which occurs with granitic rocks in a window completely surrounded by volcanic rocks.