Laserfiche WebLink
Subsidence Field Observations <br />West Elk Mine <br />August 28 and 29. 2001 <br />Figure 3. Westward view of [he same outcrop <br />area shown in Figure 2. <br />3.1.4 Traverse B-B' <br />Traverse B-B' is located along the drill road from a fork in the West Flatiron drill road to the <br />degasification drill site neaz drill hole 96-27-1. <br />• This is a baseline traverse above the un-mined longwall panel l4 in an overburden <br />ranging from 1,500 to 1,600 feet thick. <br />3.1.5 Traverse C-C' <br />• This is a baseline traverse 1,050 to 1,300 (on the ridge) to 1,050 feet (Deep Creek) <br />above un-mined longwall panels I S and 16. <br />• No unusual features were observed. The ATV trail was locally eroded more than last <br />year, but unrelated to mining activities. <br />3.1.6 Location 3 <br />Location 3 is at Deep Creek near the year 2000 Location 6; the overburden thickness is about <br />1,000 feet. <br />• The sediment load in the stream appears greater than what was observed last year, but is <br />no[ due to mining activities. <br />831-032.560 Wright Water Engineers, Inc. Page 5 <br />September 2001 <br />