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GENERAL36125
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Last modified
8/24/2016 7:56:49 PM
Creation date
11/23/2007 8:36:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981033
IBM Index Class Name
General Documents
Doc Date
12/11/2001
Doc Name
FEDERAL LEASES COC-57632 & COC-57633 PART 9 OF 9
From
DMG
To
BEAR COAL CO INC
Permit Index Doc Type
Other Permits
Media Type
D
Archive
No
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• Results of a March 1977 arohaeological survey of the permit area are presented in Exhibit 7. <br />No archeological resources were discovered. <br />The Colorado State Historic Preservation Office confirmed in a letter dated <br />December 13, 1993, that the Permit Revision No. 1 activities will not impact any cultural <br />resources due to the lack of any such resources in the area. <br />^The Colorado State Historic Preservation office confirmed (via telephone) that Permit <br />Revision No. 2 activities will not imgact any cultural resources due to the lack of any such <br />resounces in the area. <br />No public park or national historic place will be adversely affected by the Bear mining <br />operation; therefore, a damage mitigation plan is not required per Rule 2.05.6(4). <br />Climatological Information and Au• Resources -Rules 2.04.8. 2.05.4(2].(hl <br />Climatological and air resource information is contained in Sections 2.04.8 and 2.05.6 of the <br />Bear No. 1 and 2 permit application, and in Sections 2.03.10, 2.04.8 and 2.05.6 and 4.16 of <br />the Bear No. 3 permit revision application. <br />Local temperature is inversely related to elevation. Mean annual temperatures along the <br />• mountain peaks are much colder than the mean annual temperatures of adjacent valleys. The <br />mean annual temperature of Paonia, Colorado is approximately SO~F. • Temperature extremes <br />recorded at Paonia are -28~F (January 1913) and 100oF (June 1927; July and August 1934). <br />Precipitation is directly related to elevation. The valley in which Paonia and Somerset are <br />situated is semi-arid with average annual precipitation of 15 inches. Mean annual <br />precipitation increases with elevation, approaching 40 inches per year on the summit of Mt. <br />Gunnison. Annual snowfall on mountain peaks south of Somerset, Colorado, is greater than <br />300 inches. Average annual snowfall at Paonia, Colorado, is approximately 58 inches. The <br />May to September precipitation is five inches for the lowlands, and 13 inches for the nearby <br />mountain peaks. The remaining majority of precipitation occurs during the months of <br />October to April. <br />Average annual precipitation at Somerset, Colorado, is twenty-five inches (Figure 2). <br />Information from the West Elk Mine permit application indicates that approximately <br />two-thirds of the annual precipitation occur; between October and April of each year. The <br />remainder of the precipitation occurs between the months of May and September. The <br />Wilcox Ranch Station, located near Bowie, Colorado, is the closest weather station to the <br />Bear Mine. Data collected at this station indicate that a similar precipitation pattern has been <br />present for seventy years (Figure 3). <br />The Wilcox Ranch Station is at a lower elevation than Somerset; therefore, the location <br />• exhibits less precipitation. Wind direction at the mine site is generally west-northwest and <br />east-southeast. The wind direction is controlled by the east-west orientation of the North <br />Fork of the Gunnison River canyon. Diurnal heating and cooling of the land surface <br />6 <br />
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