Silver Maps

3 public-domain mining documents in the Silver Maps collection of the Mountain Man Mining Library.

• Silver City 1°×2° Quadrangle Mineral Resources (Circular 975) USGS · 1987
• Silver in the United States (MR-34) E.T. McKnight, W.L. Newman, H. Klemic & A.V. Heyl · 1979
• USGS Silver — Mineral Commodity Summaries USGS · 2025