![[MAP] California Gold Mines, Providence, Champion, Wyoming, Nevada City, Underground Projections](http://www.haaswurth.com/cdn/shop/products/DSC06864_{width}x.jpg?v=1679438634)
![[MAP] California Gold Mines, Providence, Champion, Wyoming, Nevada City, Underground Projections](http://www.haaswurth.com/cdn/shop/products/DSC06864_530x@2x.jpg?v=1679438634)
Lindgren, W. [MAP] Horizontal Projection of Underground Works of the Providence, Champion, Wyoming and Nevada City Gold Mines (1896). Washington DC: Government Printing Office, 1896. [9170]
11 1/4 x 18 1/2 inches, a beautiful and unusual color map showing the mine shafts of this region, suitable for framing. Very good.
Extracted from the Seventeenth Annual Report, U. S. Geological Survey.