Preliminary Survey of Humboldt Bay California. Sketch J No 8 U.S. Coast Survey. A. D. Bache Superintendent. By the Hydrographic Party under command of Lieut. James Alden U.S.N. and Assist. U.S.C.S.
[Washington, DC]: U.S. Coast Survey Office, 1851. The first official map of Humboldt Bay, preceded only by a Russian map drawn in 1806 and published about 1850 and a map which appeared as a newspaper extra in San Francisco. ISBN: 281AIB0100628.