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SUM~h1ARY OF COALDALE MIPlIfIG PLAN BY AREA <br />• (Refer to Mining Plan Maps for Locations) <br />Copper Hill <br />Including all "North End" development and extraction, this area com- <br />prises 25 acres of affected land. Extraction of gypsum from the "North <br />Ehd" dates back to the early 1900's and old mine cuts can still be seen <br />in the northernmost part of the mine land, named "North Ridge". Copper <br />Hill, however, is the newest major development area and contains substantial <br />reserves of high grade ore. Development and extraction was initiated in <br />1974 and will continue for the life of the mine. Reclamatior. efforts will <br />start on the east side of Copper Hill and the North end dump within the <br />• next five years, although the greater part of the Copper Hill/North End will <br /> be in close proximity to mining activites for the life of the deposit. Add- <br />itional reserves may be found directly under existing proven reserves in this <br />area, which would result in delay in initiation of the final stage of reclam- <br />at ion efforts on the Coaldale Deposit. In reference to the overlay map, <br />Copper Hill is a large waste in,7ection, intruded between bed numbers 2 and 3. <br />The gypsum from bed number 2 can be seen as a veneer on the East side of <br />Copper Hill, and the ore body extends to the East-Northeast at a 55 degree <br />dip. It is to the Northeast of Copper Hill that the main ore body is <br />found. Thirty foot benches will be developed on this side to facilitate <br />extraction of gypsum to atleast the 6750 foot elevation and possible as deep <br />as 6700, pending further deep exploration drilling in the area. <br />• , <br />