Pacific Railroad Survey
There were five Pacific Railroad Surveys, one of which was passed through the Black Rock Desert area in 1854. Edward Griffin Beckwith was surveying for the Central Pacific railroad.
The Valley of the Mud Lakes etching was created during this survey.
Resources
- Wikipedia
- Asa Merrill Fairfield, "Fairfield's Pioneer History of Lassen County, California: Containing ...," p. 25 (1916). (Full text from Archive.org.)