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JAMES A. BECKWITH FONTANARI OBJECTIONS AND COMMENTS / SNOWCAP BOND APPLICATION SL -I I / PG. 9 took GPS readings of this depression, and created a survey plat. Photographs of the depression were taken on August 14 and again on August 24, 2018. (Fontanari Exhibit 14) Research has not revealed whether this depression is part of a Surface Water Management Plan designed by Snowcap and approved by DRMS.8 Aerial photos of the area strongly suggest that it is not; there are several culverts, hillside ditches, and the North Decline Water Channel itself that would drain water away from the location of this subsidence. The subsidence does set directly over New Workings conducted by Powderhorn Coal Company during active operation of the mine 1980-2000. Subsidence Event E / Tract No. 70 East Tract No. 70 is the largest tract of the Fontanari holdings, and is located generally in the center of those holdings. (See Exhibit 1.) As relevant to these Objections and Comments, Tract No. 70 has an Upper Plateau (Subsidence F); a Lower Plateau (Subsidence G); and a deep canyon dividing Fontanari and BLM lands. Along the canyon's western rim is the Western Slope Flagstone Quarry, together with Subsidence Event E. At some prior time, a portion of this wall sloughed, or "slumped" from the canyon edge, dumping rock and dirt downslope and creating a bench. (Fontanari Exhibit 15.) There are two benches below the canyon's west rim. Bench #1 is estimated to be 300 ft. in length, 40 ft. wide, and approximately 200 ft. below the canyon's west rim. Bench #2 is approximately 100 ft. below the rim, estimated to be 20 ft. in width, and approximately 100 ft. long. Along the rim's edge, and above Bench #2, Messrs. Hernandez and Brock found a line of sinkholes 15 feet from the rim's edge. (Fontanari Exhibit 16.) The comparison between these in-line sinkholes and the 1992 Powderhorn Mine Map is compelling. The in-line sinkholes appear to be directly above a lengthy, north -south line of coal tunnels that collapsed prior to September, 1992, when Exhibit 2 was created. The existence of this sinkhole line supports the concern that another "slump" will occur in the future. The soils along the western rim of the canyon continue to stretch apart: resulting, perhaps, in another future "slump" of the cliff edge into the canyon. Subsidence Event F / Tract No. 70 West Subsidence Event F covers the large plateau lying in the north and western portions of Tract No. 70. Coal mining below this plateau began in the 1880's with access starting at the toe of this plateau and tunnels running south into Tract No. 71 and east under the plateau. GEX began additional workings in 1980, (exhibit 2), followed by Powderhorn Coal Company. 8 Fontanari has searched the DRMS website for copies of a Stormwater Drainage Plan but without success. Fontanari agents have requested copies from DRMS officials, but without response.