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• (Page 2j • MINE ID # OR PROSPECTING ID # M-1980-146 INSPECTION DATE 11-27-2000 INSPECTOR'S INITIALS SSS OBSERVATIONS This partial inspection of the Montoya pit, was conducted at the operator's request to discuss what needed to be addressed in the proposed technical revision to bring the site into compliance with the Rules and Regulations, ensure that the actual mining operations are consistent with the mining and reclamation plans, and to ensure adequate reclamation bond is in place for reclamation of the recently changed mining operations. The smaller pit excavated into the pit floor was inspected. It appears that the east side of that pit can be reduced to the proposed 3:1 slopes by cut and fill methods. The operator indicated that they would like to perform that work in the next few weeks rather than increase the reclamation bond for that task. The south end of the west side of this pit is against a highwall that cannot be excavated any further due to historic preservation issues of sites located just beyond the top of that highwall. The slope of the lower pit is steeper than 3:1 and must be backfilled to reduce it's grade to 3:1. This material must be brought in from other areas of the pit. The highwall above this portion of the lower pit is also steeper than 3:1. If the top of the highwall cannot be advanced any further, then this highwall will need to be backfilled to achieve the 3:1 slopes. In order to backfill the upper pit highwall to a 3:1 slope, it appears that the lower pit may need to be completely backfilled. This is just an observation that was arrived at after the inspection, no measurements were taken during the inspection to support this observation. During the inspection it was noted that the highwalls exceed the dimensions that were used to calculate highwall reduction costs in the current reclamation cos[ estimate. C and J indicated they would include revised maximum highwall dimensions in the technical revision for the mining and reclamation plans. Upon approval of the revision, the reclamation cost estimate will be recalculated to account for the revised highwall dimensions and lower pit reclamation, bringing the operation back into compliance. No problems are noted in this report since they were addressed in the previous report. Responses to this inspection report should be directed to Steve Shuey at the Division's Durango Field Office. The address is; Division of Minerals and Geology, 701 Camino del Rio, Room 125, Durango, Colorado 81301, phone no. 970-247-5062. I & E Contact Address cc: Tom Gillis, DMG ^ CE NAME John Gilleland ^ BL OPERATOR C and J Gravel Products. Inc. ^ FS STREET 27661 U. S. Hiahwav 160 East ^ HW CITY/STATE/ZIP Durango. Colorado 81301 ^ HMWMD ICH) ^ SE ^ WOCD ICH) ^ OTHER