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2.0 Trapper Mine Area Description <br />a~ <br />Exhibit I shows the leases held by U[ah International Incorporated, the <br />Trapper Mine mine plan area and the proposed permit area. The mine plan <br />area is situated on [he north slope of the Williams Fork Mountains and <br />encompasses approximately 9,000 acres. The Williams Fork River runs along <br />the base of the north flank of the Williams Fork Mountains, approaching <br />[o within about 1 mile of the south limit of the mine plan area. To the <br />north, the Yampa River runs parallel [o the Williams Fork Mountains and <br />approaches within about 1-1/2 miles of the northern bondary of the mine <br />plan area. Vegetation on the mine plan area is predominantly mountain <br />shrub and big sagebrush with some dryland wheat and grassland. <br />2.1 Climatology <br />~~ • <br />The Crag area is classified as a semi-arid environment. Average annual <br />precipitation is approximately 13.5 inches (34 cm) and has ranged from a <br />maximum of 20.8 inches (52.8 cm) in 1945 to a low of 7.4 inches (18.8 cm) <br />in 1958. Snowfall generally accounts for over one third of the yearly <br />precipitation. The total amount of moisture and the percent falling as <br />snow increases to the east of Craig. Precipitation is nearly evenly dis- <br />tributed throughout the year. <br />Temperatures exhibit a wide variation both daily and seasonally. Daily <br />variations of 30° (54°C) are not uncommon. Maximum and minimum mean <br />monthly temperatures occur in July, 66.8°F (19.3°C); and January, <br />. ~ 17.5°F(-8.1°C). These wide variations in temperature are typical of dry <br />continential climates, <br />-2- <br />