1. Mineral Resources
  2. Online Spatial Data
  3. National Mineral Resource Assessment 1998

Mineral assessment tracts in Modoc county, California

[Additional scientific data in this geographic area]

GB22: Epithermal vein, Comstock (25c) (Tertiary) , covers 10 % of this area
90%50%10%5%1%
01222
GB25: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers 10 % of this area
90%50%10%5%1%
01222
GB26: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers < 0.1 % of this area
90%50%10%5%1%
2591215
GB28: Hot-spring Au-Ag (25a) (Tertiary) , covers < 0.1 % of this area
90%50%10%5%1%
1318212529
PC26: Epithermal vein, quartz-adularia (25c + 25d) (Tertiary) , covers 88 % of this area
90%50%10%5%1%
01222
PC28: Hot-spring Au-Ag (25a) (Tertiary) , covers 89 % of this area
90%50%10%5%1%
01357