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The Paonia member consists of about 600 feet of interbedded sandstone, • shale, and coal beds, It is similar to the Bowie member, but contains more sandstone and is more lenticular. The several (2 to 5) coal beds are irregularly distributed, both are ally and stratigraphically, The coal beds of the Paonia member are listed in ascending order: (1) Sunshine, (2) Anderson, (3) Lake Ridge, (4) Thompson, and (5) Stony Ridge. In addition to these, there are several thin beds of doubtful correlation. They may represent tongues of the more prominent beds or individual lenses of limited areal extent. Long-range correlation of coal beds or rock units in the member is difficult, The Upper Mesaverde (non-coal-bearing) member is 2,000 to 2,500 feet thick, and consists of lenticular gray to buff sandstones and blue- gray shales. These sandstones are generally stream-deposited channel sands, a few of which may be traced for significant distances along the outcrops. Wasatch Formation. A regional low-angle unconformity separates the • Wasatch Formation from the underlying Mesaverde Group. unconformity with the Mesaverde Group. The Wasatch consists of red and buff shale, red sandstone, and red to gray conglomerate. The lower 100 to 200 feet are arkosic and conglomeratic. The upper part of the formation consists of soft red to buff shales with minor amounts of sandstone. The unconformity between the Wasatch and the Mesaverde makes it dif- ficult to confidently project the coal horizons beneath the Wasatch. Quaternary Deposits. Unconcolidated deposits include (1) older gravels (Pleistocene and/or Pliocene) which are restricted to the tops of ridges, (2) landslide material (Pliestocene and Holocene}, (3} colluvium (Holocene), and (4) alluvium (Holocene) which is restricted to the immediate stream channels (Drawing Number D-3-7 ). The most extensive alluvium is associated with fans which develop at the confluences of two or more streams. The largest alluvial deposit ~~ 3-22