Douglas Flat was a roaring mining camp of the early 1850s. In 1857 the Harper and Lone Star Claims produced $130,000 worth of gold. The so-called Central Hill Channel, an ancient river deposit from which vast quantities of gold have been taken, is located here.
^"Douglas Flat". Office of Historic Preservation, California State Parks. Retrieved October 6, 2012.
^ abDurham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 767. ISBN1-884995-14-4.
^"Senators". State of California. Retrieved March 21, 2013.