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Gard R (1961). "Effects of beaver on trout in Sagehen Creek, California". Journal of Wildlife Management. 25 (3): 221–242. doi:10.2307/3797848. JSTOR3797848.
Peter B. Moyle; Bruce Vondracek (February 1985). "Persistence and Structure of the Fish Assemblage in a Small California Stream". Ecology. 66 (1): 1–13. doi:10.2307/1941301. JSTOR1941301.
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U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived 2012-03-29 at the Wayback Machine, accessed October 21, 2012