Mineral Resources
Online Spatial Data
National Mineral Resource Assessment 1998
Mineral assessment tracts in Grand county, Colorado
[
Additional scientific data in this geographic area
]
CR02: Skarn Cu (18b)
(Middle Tertiary)
, covers 0.5 % of this area
90%
50%
10%
5%
1%
0
0
0
0
1
CR06: Skarn Zn-Pb (18c)
(Middle Tertiary)
, covers 0.5 % of this area
90%
50%
10%
5%
1%
0
0
0
0
1
CR08: Porphyry Cu (17)
(Laramide)
, covers 47 % of this area
90%
50%
10%
5%
1%
0
0
0
0
1
CR09: Porphyry Cu (17)
(Middle Tertiary)
, covers 100 % of this area
90%
50%
10%
5%
1%
0
0
1
2
8
CR16: Polymetallic replacement (19a)
(Middle Tertiary)
, covers 0.5 % of this area
90%
50%
10%
5%
1%
0
1
2
3
4
CR17: Polymetallic replacement (19a)
(Late Tertiary)
, covers 0.5 % of this area
90%
50%
10%
5%
1%
0
0
1
2
4
CR31: Hot-spring Au-Ag (25a)
(Tertiary)
, covers 99 % of this area
90%
50%
10%
5%
1%
0
0
0
1
2