1988-04-11_PERMIT FILE - C1981008A ‎(6)‎

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/11/1988
• Doc Name: Lithologic Descriptions of Core and Bore Holes
• Section_Exhibit Name: Tab 6 Exhibit 4-1
• Media Type: D
• Archive: Yes

Drill Hole #GW-N2
Nucla Mine, Montrose County, Colorado
Date Drilled: 3/23/77
Depth Thickness
(Feet) Strata (Feet)
0 Surface soil 1.0
1.0 Brown clay and sandstone 4.0
5.0 Brown sandstone 1.7
6.7 Damp brown clay 2.3
9.0 Gray shale 1.0
10.0 Smut (#1 - U. Dakota ?) 1.6
11.6 Gray shale 0.7
12.3 Sandstone 1.0
13.3 Shale and sandstone 4.4
17.7 Dark shale 2.4
20.1 Coal 1.5
21.6 Gray shale 0.4
22.0 Coal 2.4
24.4 Wet coal #2 (L. Dakota) 1.0
25.4 Dark shale 0.3
25.7 Coal 1.5
27.2 Dark shale 0.8
28.0 Shale and sandstone 0.2
28.2 Hard sandstone 1.2
29.4 Shale and sandstone 0.9
30.3 Gray shale 3.1
33.4 Hard sandstone 3.2
36.6 Shale and sandstone 0.8
37.4 Hard sandstone 1.1
38.5 Gray shale 18.0
56.5 Shale and sandstone (water?) 1.5
58.0 TOTAL DEPTH
NOTE: Well #GW N2 mined out.
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