Empire Mine State Historic Park is a state-protected mine and park in the Sierra Nevada Mountains in Grass Valley, California, US.
Truckee is an incorporated town in Nevada County, California, United States.
Donner Lake is a freshwater lake in Northeast California on the eastern slope of the Sierra Nevada and about 20 miles northwest of the much…
The Transcontinental Airway System was a navigational aid deployed in the United States during the 1920s.
Malakoff Diggins State Historic Park is a state park unit preserving the largest hydraulic mining site in California, United States.