History and Map
Sierra County was formed from parts of Yuba County in 1852. The county derives its name from the Sierra Nevada.
After the discovery of gold in the Sierra foothills sparked the California Gold Rush, more than 16,000 miners settled in Sierra County between 1848-1860. Most mining settlements in the county sprung up along the North and Middle Forks of the Yuba River. By 1880 the county was “crushing” 70,000 tons of quartz and had 266 miles of mining ditches.
State Historical Landmarks
#421: Henness Pass Road
#695: Plum Valley House
#971: Sierra County Sheriff’s Gallows