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

Mineral assessment tracts in Prince William county, Virginia

[Additional scientific data in this geographic area]

SA04: Massive sulfide, kuroko (Phanerozoic) (28a) (Cambrian) , covers 18 % of this area

90%	50%	10%	5%	1%
4	8	12	12	12

SA18: Sediment-hosted Cu (30b) (Early Mesozoic) , covers 51 % of this area

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

SA20: Low-sulfide Au-quartz vein (36a) (Paleozoic) , covers 9 % of this area

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

SA21: Low-sulfide Au-quartz vein (36a) (Paleozoic) , covers 44 % of this area

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