Laserfiche WebLink
Subsidence and Geologic Fietd Observatwns <br />Apache Rocks and Box Canyon Mining Areas <br />July 12.15, 2004 <br />Flguro 8. Northward view abng the east Gdls of West Flatiron. The Jett side of Image is the approximate <br />bountlary between the east side of the Box Canyon mining area and the west side of the West Flatiron <br />Lease. Lower side of image marks the approximate south boundary of the West Flatiron Lease. <br />• The natursrl rockfall potential is high in the upper 200 to 300 fcet on the cast side of the Box <br />Canyon mining area and on the west side of the Wcst Flatiron Lease. The risk to safety, <br />however, is low because there arc nu access roads in the base area. <br />• Although Figure 6 covers much of the \Yest Flatiron Lease, the image is included in this <br />report because the west area (west side of image) is within the mining influence of the eastern <br />part of longwall mining panels 18 through 21 within the Box Canyon mining area. <br />Luc Lion <br />• Point is located above un-mined longwall panel 20 near cliff outcrop of the Ohio Creek <br />Member of the Mcsaverde Formation. <br />Overburden depth to the B Scam is 2,200 feet. <br />63t-032.640 Wnght Waler Engineers. Inc. Pape 16 <br />September 2004 <br />