PERMFILE126357

• Permit No: C1981020A
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Section_Exhibit Name: Appendix O
• Media Type: D
• Archive: Yes

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is steep, rugged and it is comprised mostly of rock outcrops.
The soil cover, except for limited talus deposits, is rela-
tively thin. The south valley side, where the present gravel
road has been constructed, is significantly different; it is
generally flatter than the north side, it carries soil cove
of considerable thickness, it has much fewer rock outcrops
than the north side, and it has a significant vegetation cover.
2.2 REGIONAL GEOLOGY
The area of the proposed mine and the haul road lies in
the Mt. Garfield Formation of the Mesa Verde Group of the
Upper Cretaceous Age. The Mt. Garfield Formation consists
of buff and grey fine-grained and medium grained sandstones,
siltstones, grey shales, and interbedded coal seams. The area
lies northeast of the Garmesa Anticline on the south flank of
the Piceance Basin. The regional dip i.s about two degrees to
the northeast. No faults have been identified in the area from
interpretations of aerial photographs, structural mapping or
coal seam relations.
Of the bedrock units, sandstones comprise the most re-
sistant member of the formation. They frequently outcrop in
distinct ledges or cliffs, siltstones are apparently less
resistant as they do not outcrop in the sides of the valley.
• Shales and coal comprise the weakest members of the formation.
They are frequently covered with colluvial and talus slopes