„[E]vents from January 1848 through December 1855 [are] generally acknowledged as the 'Gold Rush' … After 1855, California gold mining changed and is outside the 'rush' era.“
The Gold Rush of California: A Bibliography of Periodical Articles [online]. California State University, Stanislaus, 2002 [cit. 2008-01-23]. Dostupné v archivu pořízeném dne 2012-02-21.
