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

Mineral assessment tracts in Trinity county, California

[Additional scientific data in this geographic area]

PC03: Skarn Cu (18b) (Mesozoic) , covers 54 % of this area

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

PC08: Porphyry Cu (17) (Mesozoic) , covers 60 % of this area

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

PC10: Massive sulfide, Cyprus (24a) (Jurassic) , covers 39 % of this area

90%	50%	10%	5%	1%
0	3	4	5	6

PC11: Massive sulfide, Besshi (24b) (Mesozoic) , covers 22 % of this area

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

PC14: Massive sulfide, Sierran kuroko (28a.1) (Jurassic) , covers 39 % of this area

90%	50%	10%	5%	1%
0	3	7	15	20

PC15: Massive sulfide, kuroko (28a) (Devonian) , covers 0.6 % of this area

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

PC40: Low-sulfide Au-quartz vein (36a) (Mesozoic) , covers 63 % of this area

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