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gas holes) in the basalts. <br />A typical profile of the materials in the various exposures <br />consists of one to 3 feet of brown top soil, often with a <br />carbonate layer, and the underlying fan deposit of very coarse <br />material, <br />Thickness of the Alluvial Fans <br />The exact depths of the alluvial fan deposit on this parcel <br />could only be determined by several drill holes to bedrock. <br />However, reasonable estimates of depth can be made from available <br />data. A test pit to 35-foot depth at the Western Slope Flagstone <br />Quarry No. 2 about 0.5 mile to the east did not reach bedrock. <br />Excavation for a livestock pond about 1,800 feet east of this <br />parcel reportedly did not reach bedrock to a depth of 25 feet. <br />An estimated average depth of 25 feet was used to calculate <br />the volume of silt and clay, gravel, cobbles, and boulders <br />occurring underneath the subject Powder Mountain Ranch property <br />(see attached table, page 10). <br />Water Table <br />A high water table that would hinder mining of the gravelly <br />alluvial deposit under the subject property is not expected to <br />occur. The site is about 160 feet higher in elevation than the <br />nearby Rapid Creek and about 270 feet higher than the Colorado <br />River to the northwest. A small irrigation ditch which feeds <br />a stockpond at the southeast corner of the property carries <br />only small flows from Rapid Creek during spring runoff and is <br />not expected to be creating a water table. <br />CONCLDSIONS <br />An appraisal of the gravel resource on a 25.24-acre parcel in <br />Section 34 owned by Powder Mountain Ranch was made by surface <br />reconnaissance on March 18, 1999. The description of the gravelly <br />materials and the depth of the deposit are based principally <br />on observation in roadcuts and other nearby excavations. An <br />estimate of 400,000 cubic yards of recoverable gravelly material <br />underneath the subject parcel has been made using an estimate <br />of 25 feet as average depth. A number of drill holes to bedrock <br />would be necessary to refine the volume computation. <br />These gravelly materials have <br />riprap, roadfill, landscaping <br />materials are presently being <br />Clifton, Colorado at a nearby <br />Slope Flagstone Quarry No. 2, <br />potential commercial value for <br />stone, and other uses. Such <br />mined by Mr. Rudy Fontanari of <br />site designated as the Western <br />3 <br />