Laserfiche WebLink
CRAGG SURVEYING <br />Stephen B. Cragg PLS <br />14762 2900 Road <br />• Hotchkiss, Colorado 81419 <br />Phone 970.872-2258 <br />Fax 970.872-3358 <br />October 06, 2003 <br />Basil Bear <br />Bowie Resources ltd. <br />P.O. Box 1488 <br />Paonia, Colorado 81428 <br />RE: Subsidence Survey <br />Bowie No. 1 Mine <br />On June 19 and 20 of 2003 Cragg Surveying conducted the subsidence survey for the <br />Bowie #1 Mine. <br />This survey has been based on corrtrol monuments established by Colorado Westmoreland, Inc, <br />and later Cypress Coal. They have been in place for several years. The monuments are <br />4 inch iron pipes with a fixed plate which allows the instrument to be placed directly on <br />top of the monument. <br />The survey has been performed by different personnel over the years. Westmoreland and Cypress <br />surveyors up through September of 1994. Ute Engineering and Surveying from June, 1995 <br />through November of 1997. Currently Cragg Surveying is now performing the surveys. <br />• Past surveys have relied on the Westmoreland values for these control monuments. in May <br />of 2001 Cragg Surveying established survey control for aerial photo mapping for the reclamation <br />of the Bowie #1 Mine Site. This survey control was pertorrned using GPS survey methods <br />calitxated to mine control poirrts, Stations F, G and S. These stations are south of the mined <br />area and not subject to subsidence due to mining activity. However Stations B and C are over <br />mined out areas of the mine and subject to possible subsidence <br /> <br />51-1 <br />