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

Mineral assessment tracts in Pierce county, Washington

[Additional scientific data in this geographic area]

PC05: Porphyry Cu (BC-AK) (17) (Tertiary) , covers 58 % of this area

90%	50%	10%	5%	1%
1	3	10	10	10

PC27: Epithermal vein, Sado (25d) (Tertiary) , covers 62 % of this area

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

PC28: Hot-spring Au-Ag (25a) (Tertiary) , covers 62 % of this area

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