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<br /> Drill Hole X775-E (Overburden Core. <br />. Nucla Mine, !•bntrose County, Colorado <br /> Date Drilled: 1/30/80 <br /> Depth ~ Thickness <br /> (Feet) Strata (Feet) <br /> 0 Dark brawn sandy topsoil' 0.8 <br /> 0.8 Yellowish-brown fine rained sandsto.-:e 5.6 <br /> 5.4 Light gray and yellowish-brown clay 1.0 <br /> 7.4 Browri saruly shale with plant remains. 14.6 <br /> Gypsizn filled fractures. (NOTE: change <br /> care diameter from 2-1/$" to 3" at 10.0') <br /> 22.0 2,ost 1.0 <br /> 23.0 Light gray to yellavish-brown fine-gained 12.8 <br /> argillacecais sandstone with gypsum fil3.ed <br /> fractures and plant rennins. occasional <br /> . thin intesbeds of yellavrish-bran shale. <br /> 35.8 Dark gray shale with minor lenses of swirl- 2.5 <br /> stone (apprwcimately 0.05 feet thick) <br /> 38.3 Lost 4.2 <br />• 42.5 Dark gray shale 3.9 <br /> 46.4 Light to dark gray fine-grained sandstone 2.4 <br /> with pyrite nodules (approadmately 0.02 foot <br /> . diameter) <br /> 48.8 Coal Rider 1.5 <br />_ 50.3 Dart. gray shale with gypsum filled fractures 2.8 <br /> 53.1 Coal 2.3 <br /> 55.4 Sandstone al (U. Dakota) 0.1 <br /> 55.5 Coal - 0.2 <br /> 55.7 Shale 0.1 <br />. 55.8 Sandstone 0.2 <br /> 56.0 Light to dart' gray fine-grain.~d airillaceous 4.0 <br /> sardstone with dark shale ~am;nwe - abundant <br /> plant remains <br /> 60.0 host 0.7 <br /> 50.7 Light gray to near white fine-grained sand- 0.4 <br /> stone (NU18: Change core diameter fran 3" <br /> to 2-1/8" at 60.7 feet) <br /> 61.1 Dark gray shale and sandy shale 1.8 <br /> <br />fi-1-39 <br />• <br />REVISED MARCH 2006 Attachment 2.04.6-1-40 <br />