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detail in the Archaeological Appendix in Volume 9B. The State Historical Preservation Officer <br />reviewed the 1983 application permit revision and the 1986 permit revision and has determined <br />that there aze no sites within the permit area currently listed in the National Register of Historic <br />Places. <br />Surveys classified seven of these sites as eligible for the National Register pending further <br />investigation. None of the seven is going to be disturbed by development activities, and none <br />will be undermined. The Roatcap Game Trail Site (SDT 271) was excavated in late 1986 to <br />ensure that increased access in the East Roatcap drainage would not result in vandalism. Several <br />of [he other sites have a very limited potential for subsidence damage, as they are found on the <br />mazgins of the angle of draw. <br />Climatological Information and Air Resources -Rules 2.04.8. 2.05.4(2)(h). 2.05.6(1). 4.17 <br />Climatological documentation is presented on pages 58-66, Section 2.04 of Volume 1 and in the <br />Climatology and Wind Direction Appendix, Volume 9. Bowie Resources Limited has also <br />provided copies of al] emissions permits from the Colorado Department of Health in Volume 9. <br />Evaporation pan monitoring data are summazized in the Annual Hydrology Reports. <br />Climatological data for the North Fork region is available from Paonia, three (3) miles due south <br />and 1,500 feet lower in elevation than the mine site. The average annual temperature is 49.ONF <br />at Paonia, with an average monthly mean of 24.SNF in January and 71.9NF in July. At Paonia, <br />the annual precipitation is 8 to 15 inches. <br />The local climate of the North Fork area is strongly influenced by microclimatic features -slope <br />aspect, elevation, soil type, soil moisture content and vegetation. The steepness of the terrain, <br />together with the type and amount of vegetation, orientation and range of elevation, aze the major <br />controls of the diurnal wind patterns. The shape and orientation of the North Fork valley is such <br />that the drainage (or katabatic) flow is the dominant flow for most hours of the day. Prevailing <br />winds are from the south-southeast, with wind speeds of ten (10) miles per hour occurring in <br />June. Below Paonia, the wind speed appeazs to decrease sharply as the air spreads over the lower <br />valley. Because of this strong drainage wind, frost pockets are not allowed to form, thus creating <br />a favorable microclimate for fruit tree farming. <br />Geology -Rules 2.04.5 and 2.04.6(2) <br />Information on local and regional geology can be found on pages 15 to 26 of Section 2.04.6 of <br />Volume 1. Maps 2-1, 2-2, 2-7, 2-8, 2-11, 2-12 and 6A-8 identify pertinent geologic features. <br />Waste rock geochemical analyses can be found in Volume 6A. <br />Bowie Resources Limited has mined [he D seam of the Upper Coal member of the Mesaverde <br />Formation. The seam ranges in thickness from 2 to 21 feet in the permit area, with one split <br />ranging in thickness from 15 1/2 feet to several inches. The coal dips 4N to 7N to the northeast. <br />Two high-angle, normal fault zones are found in the area with displacement ranging between 1 <br />and 50 feet (Map 2-8). The eazliest fault system trends N65NE and dips 70N to 80N with <br />displacements of 2 to 6 feet. The other fault system trends N35NW and dip 70N to 80N to the <br />11 <br />