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n~ ~ ~ • 37 E. Colorado Averl~l Illll11111111111 Denver, CO 8021( (303) 722-9067 ess Environmental Services Botanical Studies • April 11, 1985 Camille Farrell Mined Land Reclamation Rm 423 Centennial Bldg, 1313 Sherman St. Denver, CO 80203 Photography k ~~R L ~ ~~+~,, RE: Minor changes in certain exhibits of Daniel's Sand Pit M2 Amendment Your File No.: 73-7 Dear Camille: Thank you for pointing out the problems with the legal description and with the clarification of certain features on the cross-sections. I have enclosed new exhibits for these items. In checking back on my notes I found that the legal description was in fact drawn up using the topographic map. The final maps were not completed at that point. Normally, doing a legal description from a topographic map is entirely satisfactory for quarter, quarter section definition, but where the maps spans the boundaries of two maps, it can become rather confusing. I am not exactly sure why, but in my experience, about 6 or 7 out of every 10 mining operations span two maps, and I have had one that was centered on the union of four maps. One could almost search for minerals 6y first checking lands along the boundaries of topographic maps and later looking elsewhere. The cross-sections have been further labelled. These were not labelled because I thought it was rather evident which was the existing and which was the reclamation, Very few sand and/or gravel operations will backfill to a depth of 70 or 80 feet, so I thought it was evident which was which and no labels were needed. But sometimes those of us who have been in this business for so long tend to forget that those who are rather new to this business are not always as familiar with the operational methodologies as we are and we can tend to assume too much at times. Sorry about that. Respectfully, ~j'//(NV"` ~ GMT'/~ti~ Mark A. Heffner Encl.: New Exhibit A - 4 copies. New Cross-sections (FF', GG', HH', II',JJ') - 4 copies.