PERMFILE103097

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: NH1 TAB 6 APPENDIX 6-1 LITHOLOGIC DESCRIPTIONS OF CORE AND BORE HOLES
• Media Type: D
• Archive: Yes

• Drill Hole #347
Nucla Mine, Nbntrose County, Colorado
Date Drilled: 11/12/73
Depth Thickness
(Feet) Strata (Feet)
0 Sand and sandstone 1.7
1.7 Sandstone 5.5
7.2 Shale with sandstone streaks 3.8
11,0 Shale 10.0
21.0 Sandstone 4.0
25.0 Shale 2.3
27.3 Slate 1.1
28.4 Coal #1 (U. Dakota) 1.6
30.0 Dark shale 0.8
30.8 Shale and sandstone 6.5
37.3 Dark shale 2.0
39.3 Dark shale and coal 0.5
#2 (L. Dakota)
39.8 Coal 6.3
• 46.1 Shale 3.9
40.0 Shale and sandstone 5.4
55.4 Shale 2.6
58.0 Dark shale 4.0
62.0 Shale and sandstone streaks 8.0
70.0 Shale 1.3
71.3 Dark shale slate 0.6
71.9 Coal 2.2
74.1 Slate tk3 (Nucla) 2.5
76.6 Coal 1.1
77.7 Shale 0.3
78.0 Shale and sandstone 3.0
81.0 Shale 6.0
87.0 Sandstone and shale streaks 3.1
90.1 Shale 3.4
93.5 Shale and sandstone 1.5
95.0 Dark shale and slate 1.5
. 96.5 Shale 3.5
100.0 TUPAL DEPTH
6-1-25