"Map Showing the Location of the Principal Mining Companies on the Blue Gravel Channels Situation in Sierra & Nevada Counties California",

This scarce map shows mining claims in the vicinity of the Yuba River and further locates ditches, roads, gravel deposits, the Central Pacific Railroad, and more. Compiled from United States Surveys by P. Huerne. Noted as House Document #46 at lower left, this map appears to be a smaller version of the Britton & Rey map with a similar title. There are no sales records for this map in the last 30 years.

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Condition: B+

Issued folding with light toning along the top left fold and a minor tape repair confined to the top blank margin.