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• <br /> <br />TABLE la. <br />Precipitation,_temperature and frost-free season calculations <br />for relative changes in topography tit Seneca II Mine. <br /> <br /> <br />Elevation Precipitation Temperature Frost Free <br />(Feet) (Inches) (°F) Days <br />6400 16.25 45.2 96 <br />6500 16.50 44.7 94 <br />6600 16.75 44.2 93 <br />6700 17.00 43.7 92 <br />6800 17.25 43.2 90 <br />6900 17.50 42.7 87 <br />7000 17.75 42.2 85 <br />7100 18.00 41.7 83 <br />7200 18.25 41.2 81 <br />7300 18.50 40.7 79 <br />7400 18.75 40.2 78 <br />7500 19.00 39.7 76 <br />7600 19.25 39.2 74 <br />7700 19.50 38.7 72 <br />7800 19.75 38.2 70 <br />7900 20.00 37.7 69 <br />8000 20.25 37.2 68 <br />8100 20.50 36.7 66 <br />1~'his table was supplied by Peabody Coal Company and all references to <br />climatic Features of the several mapping units have been adjusted to <br />the elevation/climatic property relations shown here. <br />-5- <br />