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

Mineral assessment tracts in San Bernardino county, California

[Additional scientific data in this geographic area]

GB07: Porphyry Cu (17) (Mesozoic - Tertiary) , covers 1 % of this area

90%	50%	10%	5%	1%
0	0	0	1	2

GB22: Epithermal vein, Comstock (25c) (Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	1	2	2	2

GB25: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	1	2	2	2

PC08: Porphyry Cu (17) (Mesozoic) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	0	0	1	1

SB01: Skarn Cu (18b) (Mesozoic - Tertiary) , covers 17 % of this area

90%	50%	10%	5%	1%
1	2	4	4	4

SB02: Skarn Cu (18b) (Mesozoic - Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	0	0	1	1

SB06: Porphyry Cu (17) (Mesozoic - Tertiary) , covers 86 % of this area

90%	50%	10%	5%	1%
0	0	0	2	3

SB07: Porphyry Cu (17) (Mesozoic) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	0	1	1	2

SB08: Porphyry Cu (17) (Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	0	0	1	2

SB17: Porphyry Cu-Au (20c) (Laramide) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	1	2	3	4

SB18: Polymetallic replacement + skarn Zn-Pb (19a + 18c) (Mesozoic - Tertiary) , covers 17 % of this area

90%	50%	10%	5%	1%
0	1	2	5	7

SB19: Polymetallic replacement + skarn Zn-Pb (19a + 18c) (Mesozoic - Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	1	2	2	2

SB23: Distal disseminated Ag-Au (19c) (Mesozoic - Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
0	0	1	1	2

SB27: Epithermal vein, Comstock (25c) (Tertiary) , covers 63 % of this area

90%	50%	10%	5%	1%
0	1	2	2	2

SB29: Epithermal vein, Comstock (25c) (Tertiary) , covers < 0.1 % of this area

90%	50%	10%	5%	1%
1	5	7	10	15

SB31: Epithermal vein, Sado (25d) (Tertiary) , covers 63 % of this area

90%	50%	10%	5%	1%
0	0	1	1	2

SB32: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers 63 % of this area

90%	50%	10%	5%	1%
0	0	2	3	4

SB34: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers < 0.1 % of this area

The number of undiscovered deposits in this tract was not estimated.

SB36: Hot-spring Au-Ag (25a) (Tertiary) , covers 63 % of this area

90%	50%	10%	5%	1%
0	2	4	6	8

SB39: Hot-spring Au-Ag (25a) (Tertiary) , covers < 0.1 % of this area

The number of undiscovered deposits in this tract was not estimated.

SB40: Sediment-hosted Au (26a) (Phanerozoic) , covers 9 % of this area

90%	50%	10%	5%	1%
0	0	0	0	1