Gwin Mine, Paloma, and Lower Rich Gulch were mined for placer gold in 1849, and quartz was discovered by J. Alexander in 1851. Property here was acquired by William M. Gwin, California's first U.S. Senator, in 1851. After yielding millions of dollars in gold, the Gwin Mine closed in 1908.
^ abDurham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 812. ISBN1-884995-14-4.
^"Paloma". Office of Historic Preservation, California State Parks. Retrieved October 6, 2012.
^"Senators". State of California. Retrieved March 21, 2013.