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

Mineral assessment tracts in Custer county, Colorado

[Additional scientific data in this geographic area]

CR02: Skarn Cu (18b) (Middle Tertiary) , covers 4 % of this area

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

CR06: Skarn Zn-Pb (18c) (Middle Tertiary) , covers 3 % of this area

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

CR09: Porphyry Cu (17) (Middle Tertiary) , covers 99 % of this area

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

CR12: Porphyry Cu-Au (20c) (Middle Tertiary) , covers 99 % of this area

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

CR16: Polymetallic replacement (19a) (Middle Tertiary) , covers 3 % of this area

90%	50%	10%	5%	1%
0	1	2	3	4

CR17: Polymetallic replacement (19a) (Late Tertiary) , covers 3 % of this area

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

CR21: Alkaline Au-Te (22b) (Middle Tertiary) , covers 99 % of this area

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

CR24: Massive sulfide, kuroko (28a) (Proterozoic) , covers 0.2 % of this area

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

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

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

CR35: Sedimentary exhalative Zn-Pb (31a) (Proterozoic) , covers 0.2 % of this area

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

CR36: Low-sulfide Au-quartz vein (36a) (Proterozoic) , covers 0.1 % of this area

90%	50%	10%	5%	1%
1	2	3	4	5