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• <br />IInited States <br />Department of <br />Agriculture <br />Natural Resources 31 8uttle street <br />Conservation Durango, Colorado <br />Service 81301 <br />February 9, 1999 <br />southwest Land <br />P. O. Hox 2673 <br />Durango, Colo. <br />Services, Inc. <br />81302 <br />Subj. Proposed Gravel Pit in 8W 1/4, Sec. 4, T.35 N., R.9 W. <br />Climate <br />The average annual precipitation is about 16 inches, and the <br />average annual temperature is about 47 degrees F. Frost <br />free season is about 115 days. <br />Soils <br />There are two soil types on this plot of land. The largest <br />is a complex of IIstic Torriorthents - Datollic Haplargida, <br />12 to 60 percent slopes. These soils are both very deep and <br />consist mostly of a thin layer of very cobbly loam of fine <br />sandy loam over very gravelly or very cobbly outwash <br />material. This soil occurs on all of the steeper areas and <br />oa ridges. <br />The other soil type of minor extent is the Falfa clay loam. <br />It has a clay loam surface about 9 inches thick, a clay <br />subsoil about 40 inches thick, and clay loam substratum that <br />grades into the gravelly underlying material. This soil is <br />oa the gently sloping mesa top. <br />Vegetation <br />The native vegetation on this site consists of pinyon, <br />juniper, big sagebrush, western wheatgrass, Indian <br />ricegrass, aeedleandthread, blue gramma, muttongrass, and <br />Junegrass. <br />Stockpile the topsoil during operations. To be used is <br />reclamation of the site. Spread 8 to 12 inches of this over <br />the site before reseeding. <br />A reseeding recommendation that can be used for reclamation <br />when the gravel pit is closed is attached. <br />Sincerely, <br />J.P. Pannell <br />Soil Scientist <br />