Rich Bar is in western Plumas County near the junction of the North Fork and the East Branch of the North Fork of the Feather River. During the gold rush this was an extremely rich placer-mining district; Rich Bar alone is credited with an output of $9 million. Later the river was mined by Chinese. The river here goes around a series of sharp bends, a course that has resulted in the formation of wide gravel bars. There are several narrow gold-quartz veins in the area.