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Bear Coal conducted a raptor survey of any rock outcrops above workings proposed by Permit Revision No. 1. This survey, conducted on April 22, 1994 in conjunction with the Colorado Division of Wildlife, found no evidence of raptor nesting in these rock outcrops. The Division finds that the proposed activities will not affect the continued existence of endangered or threatened species or result in the destruction or adverse modification of their critical habitats pursuant to Rule 2.07.6(2)(n). The Bear Coal operation is in compliance with the provisions of this section. XI V. Protection of Underground Mining A. This section is not applicable to the Bear Coal Company permit. XV. Subsidence Control A. A description of the subsidence monitoring plan for the Bear Mine is presented in Section 2.05.6 of the Bear No. 3 permit revision application. i • Mining within the Bear No. 1 and No. 2 mines has ceased. Bear Coa! Co. must conform with the requirements of the permanent program regulations regarding subsidence control at the Bear No. 3 Mine. No structures overlie the underground workings of the Bear No. 3 Mine. Potentially affected renewable resource lands are limited to the aquifers of the Barren Member of the Mesaverde and the coat seams overlying the B- and C-Seams extracted in the Bear No. 3 Mine and the springs located in Lone Pine Gulch. The limited area of the potentially affected aquifers which occur within the permit area, and the limitation of potential effects to the down-dip, near-outcrop parts of these aquifers and coal seams, will reduce the possible hydrologic effects of subsidence upon the aquifers and the coal seams. Bear will not mine within the angle of draw of the Lone Pine springs, and additionally will use 50 percent coal extraction in areas adjacent to these springs. The Division does not consider the Bear No. 3 Mine a threat to either structures or renewable resource lands. Bear Coal Company has backfilled the portals at the Bear No. 1 and 2 Mines. The Division stipulated that the stability of these two backfilled areas be monitored for a period of two years in the September 18, 1985 permit revision findings document. This stipulation has been satisfied. CJ The canyon walls of the North Fork of the Gunnison River are covered with numerous landslide deposits. These mass movement features vary in age from ancient to modern. Rotational slumps, translational, earthflow and debris-flow features are present on the site. A study conducted by Rocky Mountain Geotechnical of the Sear No. 3 property has mapped numerous mass movement features. 28