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official Series Description - HARSHA Series <br />http://ortho. ftw.nres.usda. gov/osd/dat/H/HARSHA. html <br />The C horizon ranges from loam to clay loam and has 18 to 35 percent clay. <br />COMPETING SERIES: These are the Alcova, Almy, Antonito, Bluerim, Bonfri, Cushool, Diamondville, <br />Elk Hollow, Fluetsch, Forelle, Rawah, Rock River, Satanka, Stunner, and Wolford series. Alcova and Elk <br />Hollow soils have skeletal C horizons occurring above a depth of 40 inches. Almy soils have hue of 5YR or <br />redder in the B2t horizon. Antonito soils have a lithic contact at depths of 20 to 40 inches. Bluerim, Cushool, <br />............. .......__.. <br />Diamondville, Rawah, and Satanka soils have a paralithic contact above a depth of 40 inches. Fluetsch soils <br />have more than 35 percent fine or coarser sand and have C horizons with less than 18 percent clay. Forelle <br />soils have a mean summer soil temperature warmer that 59 degrees F. Rock River soils have more than 35 <br />percent fine sandy or coarser in the argillic horizon. Stunner and Wolford soils have calcic horizons. <br />GEOGRAPHIC SETTING: Harsha soils occupy mountain side slopes, fans, and ridges at elevations of <br />7,500 to 9,000 feet. Slopes range from 0 to 60 percent. The soils formed in alluvial sediments derived <br />......... .._......._......... .._... .... _ <br />principally from sedimentary rock. The mean annual precipitation is about 11 to 14 inches. Mean annual <br />..... ..... _ ...... <br />temperature is about 36 to 40 degrees F.; mean summer temperature is about 47 to 54 degrees F., and the <br />frost-free season is about 35 to 75 days. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bearmouth, Emerald, Leavitt, Rogert, and <br />Roxal soils. Bearmouth soils lack argillic horizons and are skeletal. Emerald soils have mollic epipedons and <br />lack argillic horizons. Leavitt soils have mollic epipedons. Rogert soils have a lithic contact at depth of 10 to <br />20 inches. Roxal soils have a paralithic contact. <br />DRAINAGE AND PERMEABILITY: Well drained; medium to rapid runoff; moderate permeability. <br />USE AND VEGETATION: These soils are used for range and wildlife, with some areas being irrigated for <br />hay. Native vegetation is dominantly wheatgrass, needlegrass, squirreltail, big sagebrush, and rabbitbrush. <br />DISTRIBUTION AND EXTENT: North-central and northwestern Colorado. The series is moderately <br />extensive. <br />MLRA OFFICE RESPONSIBLE: Lakewood, Colorado <br />SERIES ESTABLISHED: Grand County, Colorado, 1977. <br />REMARKS: Last updated by the state 3/77. <br />National Cooperative Soil Survey <br />U.S.A. <br />. of 2 4/14/2009 11:29 AM