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

Mineral assessment tracts in Rio Blanco county, Colorado

CR09: Porphyry Cu (17) (Middle Tertiary) , covers 3 % of this area

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

CR31: Hot-spring Au-Ag (25a) (Tertiary) , covers 15 % of this area

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

CR33: Sediment-hosted Cu, redbed (30b.2) (Pennsylvanian - Permian) , covers 8 % of this area

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