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Mud Creek Pit -Reclamation Permit Application - 1 12 (C) Exhibits Page 47 of 67 <br />EXHIBIT K -Climate <br />MANGOS/POINT LOOKOUT AREA, MONTEZUMA COUNTY, COLORADO: <br />SUMMARY: Average annual precipitation is 15 inches of which approximately 50% falls during the growing season. <br />Optimum growing season for native plants is from April to September. The frost-free period vanes from 100 to 140 <br />days. Temperature ranges from -20's to +90's F. Much of the precipitation falls as snow but winters are generally <br />open. Summers are warm or hot, winters cold. Site has little or no water table above the Mancos Shale, but ponding <br />may occur immediately after precipitation events. <br />)Ilc nas I S ~ [?cr annum. <br />Source(s) of Information: <br />a. US Bureau of Reclamation, Mancos Project (website); <br />b. Montezuma County Economic Development (personal conversations); <br />c. The Weather Channel (website); <br />d. USDA Natural Resources Conservation Service (various publications, website), <br />e. Colorado Division of Water Resources (website), <br />f. Chapman, S.S., Griffith, G.E., Omernik, J.M., Price, A.B., Freeouf, J., and Schrupp, D.L., 2006, <br />Ecoregions of Colorado (color poster with map, descriptive text, summary tables, and photographs): <br />Reston, Virginia, U.S. Geological Survey (map scale 1:1,200,000). <br />2. General Climate: <br />Montezuma County, in the southwest corner of Colorado, is where the San Juan Mountains meet the desert canyon country. The <br />area has milder winters than most of Colorado, yet still has four distinct seasons. Winter weather patterns flow from the <br />southwest and west, usually avoiding the colder storms that are typical of most parts of Colorado. Winter storms bring heavier <br />snowfalls to the San Juan Mountains in the northeast portion of the county. The atmosphere is dry and generally clear. There is <br />abundant sunshine, with an average of 321 days of sunshine during the year. For gardeners and agriculture. USDA zones range <br />from 3 to 5. The site rates between 3 and 4. The elevation ranges from 6.200 feet in Cortez to approximately 7,000 feet in <br />Mancos and Dolores; the site is at 6,800 feet. Snowfall varies considerably with elevation. Precipitation is extremely variable from <br />year to year. <br />McStone Aggregates, LI,C IS FEB 2008 Cc~WASTELINE, INC 2008 I'N ~(-UG.I-<i(0U9- <br />