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

Mineral assessment tracts in Jefferson county, Colorado

[Additional scientific data in this geographic area]

CR08: Porphyry Cu (17) (Laramide) , covers 75 % of this area

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

CR09: Porphyry Cu (17) (Middle Tertiary) , covers 75 % of this area

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

CR11: Porphyry Cu-Au (20c) (Laramide) , covers 75 % of this area

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

CR20: Alkaline Au-Te (22b) (Laramide) , covers 75 % of this area

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

CR24: Massive sulfide, kuroko (28a) (Proterozoic) , covers 27 % of this area

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

CR35: Sedimentary exhalative Zn-Pb (31a) (Proterozoic) , covers 27 % of this area

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

CR36: Low-sulfide Au-quartz vein (36a) (Proterozoic) , covers 27 % of this area

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