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<br />a. Rainfall data for Trinidad, Colorado, 1979 <br />through 1994. <br />b. Water well data for 3 wells covering years <br />1988 to 1994. <br />3. Obtained from WRCC, OSMRE, Denver: <br />a. "Progress Report on Tatum House Subsidence <br />Issue," by Carl Gerrity, April 12, 1995. <br />b. Hydrology section from the Golden Eagle mine <br />permit. <br />b. Copy of photograph of the house taken from <br />Krakel, Dean, 1981, "Mitch - On the Trail of <br />the Old West", published by Powder River Book <br />Co. <br />c. Structural report by John D. Reins, Madsen, <br />Kneppers & Associates, Inc. (MKA). <br />4. Obtained from ARCC, OSMRE, Pittsburgh: <br />a. Maps used for this report were digitized <br />using AutoCad 12. <br />b. Subsidence modeling done by Dr. Jesse L. <br />Craft using the Surface Deformation <br />Prediction System (SOPS) software developed <br />by Dr. M. Karmis, Department of Mining and <br />Minerals Engineering, Virginia Polytechnic <br />and State University, Blacksburg, VA. <br />Programs used were the Profile Function, <br />Pillar Strength, and Protection Area <br />utilities. <br />Geolocy <br />The overburden above the Golden Eagle Mine consists of the <br />rocks of the Raton Formation, which are well-bedded <br />siltstones, shales, sandstones, and coal (Figure 1). Drill <br />logs indicate that the sandstones are hard and well <br />cemented. The overburden is between 420-feet and 440-feet <br />thick in the vicinity of the Tatum house. According to the <br />mine map, the Maxwell coal seam dips to the southeast. The <br />residence is situated on the first terrace above the <br />Purgatoire River and is approximately 376 feet horizontally <br />from the edge of the 1 North entry of the Golden Eagle Mine <br />(Figure 2). <br />3 <br />