This tinted lithograph of “Mission and Plain of San Fernando” was originally drawn by an expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate VI following page 74 in the "Geological Report by W. P. Blake (1826-1910), Geologist and Minerologist to the Expedition," as part of Volume V, Part II of the "Report of Lieutenant R. S. Williamson (1825-1882), Corps of Topographical Engineers, Upon the Routes in California to Connect with the Routes Near the Thirty-fifth and Thirty-second Parallels" by Lieutenant R. S. Williamson ... in 1853."
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1856 by A. P. O. Nicholson (1808-1876) in Washington, D.C.
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