Mineral assessment tracts in San Mateo county, California

[Additional scientific data in this geographic area]

PC08: Porphyry Cu (17) (Mesozoic) , covers 37 % of this area
90%50%10%5%1%
00011
PC34: Hot-spring Au-Ag (25a) (Tertiary) , covers 63 % of this area
90%50%10%5%1%
11222