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C~ <br />United States <br />Department of <br />Agriculture <br />C~ <br />Natural Resources <br />Conservation <br />Service <br />31 Suttle street <br />Durango, Colorado <br />81301 <br />February 9, 1999 <br />Southwest Land <br />P. O. Box 2673 <br />Durango, Colo. <br />Services, inc. <br />81302 <br />Subj. Proposed Gravel Pit in SW 1/4, Sec <br />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 />Boils <br />There are two soil types on this plot of land. The largest <br />is a complex of Ustic Torriorthents - Ustollic Haplargids, <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 />on 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 />on 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, needleandthread, blue gramma, muttongrass, and <br />Junegrass. <br />Stockpile the topsoil during operations. To be used in <br />reclamation of the site. Spread a 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 />~R. Wt~4~~_, <br />J.P. Pannell <br />Boil Scientist <br />