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

Mineral assessment tracts in San Diego county, California

[Additional scientific data in this geographic area]

PC03: Skarn Cu (18b) (Mesozoic) , covers 9 % of this area

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

PC08: Porphyry Cu (17) (Mesozoic) , covers 94 % of this area

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

PC18: Massive sulfide, Sierran kuroko (28a.1) (Mesozoic) , covers 7 % of this area

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

PC40: Low-sulfide Au-quartz vein (36a) (Mesozoic) , covers 83 % of this area

90%	50%	10%	5%	1%
2	6	9	12	15