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MINREC, INC . III IIIIIIIIIIIII III <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (303) 245-4101, FAR 242-7908 <br />BLUE RIBBON MINE <br />RECEIVED <br />APR 0 81994 <br />April 1, 1994 <br />C. E. Johnston <br />Division of Minerals b Geology <br />1313- Sherman St:-,-Room 21-5 -- - - - - -- - - <br />Denver, Colorado 80203 <br />Re: Quarterly Bench Stability Monitoring; <br />Permit No. C-81-047 <br />Dear Ms. Johnston: <br />The first quarter 1994 bench stability survey was performed April <br />1, 1994. Vertical angles were measured with a 20 second theodolite <br />and elevations were calculated using predetermined horizontal <br />distances. A summary of this survey, the last two surveys and the <br />11-20-85 base line survey is as follows: <br /> 11-20-85 09-25-93 11-10-93 04-01-94 <br />S-1 6400.90 6400.63 6400.60 6400.59 <br />S-2 6396.06 6395.86 6395.86 6395.85 <br />S-3 6385.77 6385.53 6385.56 6385.54 <br />S-5 6479.92 6479.53 6479.52 6479.52 <br />S-6 6480.51 6479.79 6479.79 6479.75 <br />S-7 6479.31 6478.94 6478.92 6479.91 <br />S-8 6479.92 6479.50 6479.47 6479.44 <br />Let me know if there are any questions concerning this data. <br />Sincerely, <br />Ste"`'--' <br />Jim Stover, P.E. <br />Chief Engineer <br />BENMON <br /> <br />