2008-03-03_PERMIT FILE - C2006085 (19)

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DRILL HOLE DESCRIPTION PROJECT: NORTHFIELD MINE DA;ILL HOLE # NORTH. 0.0 SECTION SE 1 GEOLOGIST EAST. 0.0 114,114 SE of SE GPM of WATER ELEV. 0.0 TWP. 19S DRILL DATE LOG TYPE Gamma, Density, Caliper, Resistivity RANGE 70W PAGE NF-C L. Bona 1.0 04/09/ 2of~ TOP BOTTOM THICK LITHOLOGY DESCRIPTION ~ GPti 0.0 18.0 18.0 Sandstone li ht brown, ve fine to finE~ rain 18.0 19.0 1.0 Mudstone brown SET 9.5/8" OD STEEL CASING TO 19' 19.0 23.5 4.5 Mudstone brown 23.5 42.5 19.0 Sandstone I' ht brown to li ht red, fines rain 42.5 46.5 4.0 Mudstone ra 46.5 82.5 36.0 Sandstone I' ht brown to li ht red, fines rain 82.5 88.5 6.0 Mudstone ra , sil 88.5 118.0 29.5 Sandstone ra ,~ fine rain 118.0 137.5 19.5 Sandstone ra ,fine rain 0.1 137.5 146.5 9.0 Mudstone ra to brown, coal laminae 146.5 167.0 20.5 Sandstone li ht ra ,fine rain 0.1 167.0 179.0 12.0 Mudstone ra ,silt 179.0 ~ 222.5 43.5 Sandstone ra , ve fine rain, mudstone laminae 8~ fra ments 0.1 222.5 225.5 3.0 Mudstone ra , sil 225.5 236.5 11.0 Sandstone brown ellow to ra , ve fine rain 0.1 236.5 238.5 2.0 Mudstone ra 238.5 275.0 36.5 Sandstone li ht brown to ra ,fine rain 275.0 291.0 16.0 Sandstone Lost Circulation 291.0 291.5 0.5 Shaley Coal H2S, Lost Circulation 291.5 312.0 -20.5 Mudstone ra to dark ra 312.0 314.0 2.0 Sandstone li ht ra , ve fine rain 314.0 348.0 34.0 Mudstone ra to dark ra ,sandstone lam. 348.0 349.7 i .7 Shaley Coal Upr Brookside, black 349.7 369.0 19.3 Mudstone ra to dark ra 369.0 370.8 1.8 ~ Coal Mid Brookside, black 370.8 379.3 8.5 Mudstone brown to ra 379.3 381.1 1.8 Coa[ Lwr Brookside, banded 381.1 411.0 29.9 Mudstone ra , siltstone laminae 411.0 418.5 7.5 Sandstone ra , ve fine to fine rain 418.5 422.0 3.5 Mudstone ra , sil 422.0 429.0 7.0 Sandstone ra , ve fine to fine rain Prepared by Pronghorn Geologic Services. P.O. Box 4344. Gillette. WY £32717