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Spring 2018 Subsidence and Geologic Field Observations
<br />South of Divide and Dry Fork Mining Areas
<br />6.0 BIBLIOGRAPHY
<br />DeGraff, J.V. and C.H. Romesburg. 1981. Subsidence Crack Closure; Rate, Magnitude, and
<br />Sequence. International Association of Engineering Geology Bulletin 23.
<br />Dunrud, C.R. 1976. Some Engineering Geologic Factors Controlling Coal Mine Subsidence in
<br />Utah and Colorado. Professional Paper 969. Denver, CO: U.S. Geological Survey.
<br />1989. Geologic Map and Coal Stratigraphic Framework of the Paonia Area, Delta and
<br />Gunnison Counties, Colorado. Coal Investigations Map C-115. Denver, CO: U.S.
<br />Geological Survey.
<br />1999. Subsidence Field Observations — September 15-17, 1999. Memorandum to Christine
<br />Johnston, Mountain Coal Company, LLC. Denver, CO: Wright Water Engineers, Inc.
<br />2000. Subsidence Field Observations — August 28-30, 2000. Memorandum to Henry
<br />Barbe, Mountain Coal Company, LLC. Denver, CO: Wright Water Engineers, Inc.
<br />2001. Subsidence Field Observations, West Elk Mine, August 28 and 29, 2001. Denver,
<br />CO: Wright Water Engineers, Inc.
<br />2002. Subsidence Field Observations, West Elk Mine, August 27-29, 2002. Glenwood
<br />Springs, CO: Wright Water Engineers, Inc.
<br />2003. Subsidence Field Observations, West Elk Mine, July 22-24, 2003. Glenwood
<br />Springs, CO: Wright Water Engineers, Inc.
<br />2004a. Subsidence and Geologic Field Observations: Apache Rocks and Box Canyon
<br />Mining Areas, July 12-15, 2004. Glenwood Springs, CO: Wright Water Engineers, Inc.
<br />2004b. Exhibit 60C: Subsidence Evaluation and 2004 Geologic Hazard Field
<br />Observations for the West Flatiron Lease Area. Glenwood Springs, CO: Wright Water
<br />Engineers, Inc.
<br />2004c. Exhibit 60D: 2004 Geologic Hazard Field Observations for the South of Divide
<br />Mining Area. Glenwood Springs, CO: Wright Water Engineers, Inc.
<br />2005. 2005 Subsidence and Geologic Field Observations Box Canyon, West Flatiron,
<br />Apache Rocks, and South of Divide Mining Areas. Glenwood Springs, CO: Wright Water
<br />Engineers, Inc.
<br />2006. 2006 Subsidence and Geologic Field Observations Box Canyon, West Flatiron,
<br />Apache Rocks, and South of Divide Mining Areas. Glenwood Springs, CO: Wright Water
<br />Engineers, Inc.
<br />Dunrud, C. Richard, et al. 1996. Exhibit 60A: Subsidence Evaluation of the Revised Mine Panel
<br />Layouts in Section 21 and Sections 26 and 27. Denver, CO: Wright Water Engineers, Inc.
<br />831-032.900 Wright Water Engineers, Inc. Page 23
<br />August 2018
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