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,w•_ ~ ~~ <br />ENGINEERING & SURVEYING COMPANY <br />~ l3 DODGE ST. • DELTA, COLORADO 81416 • 303-874-7593 • FAX 303-8747570 <br />1895-95 <br />Subsidence <br />• <br />• <br />June 21, 1995 <br />M. A. G. Mining Company <br />P. O. Box 1488 <br />Paonia, Colorado 81428 <br />Attention: Basil Bear <br />Re: Subsidence monitoring <br />Bowie Resources <br />Bowie #1 Mine <br />Paonia, Colorado <br />UTE ENGINEERING AND SURVEYING COMPANY completed the balance of <br />the subsidence survey during June, 1995 for the Bowie Resources <br />#1 Mine. <br />This survey is based on control monuments established by Colorado <br />Westmoreland, Inc. and Cypress, Orchard Valley Coal Corp. They <br />have been in place for several years. The monuments are 4-inch <br />iron pipes with a fixed top plate that allows the Theodolite to <br />be placed directly on the top of the monument. See map for loca- <br />tion. The coordinates of these monuments are: <br />Station B <br />Station C <br />Station E <br />Northing <br />16921.18 <br />17750.57 <br />18257.47 <br />Fasting <br />8754.49 <br />8741.52 <br />17859.89 <br />Elevation <br />8146.79 <br />8148.05 <br />8572.82 <br />UTE'S Subsidence survey is performed using a Lietz Set-2 Total <br />Station which is a 1 Second Theodolite with a Coaxial Electronic <br />Distance Meter. <br />A listing of the subsidence stations for monitoring are as fol- <br />lows: - <br />1 <br />