2016-10-21_PERMIT FILE - M2016009 (9)

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24 SOIL SURVEY T- average annual precipitation is 12 inches. The average annual temperature is 53°F, and the frost - free season is 145 to 175 days. The native vegetation is mainly plains grasses. In a representative profile (fig. 4) the surface layer L light -gray loam about 4 inches thick. The subsurface Layer is very pale brown loam about 6 inches thick. The underlying layer is very pale brown silt loam about 22 inches thick. Below that is very pale brown limestone. Permeability and the available water capacity are moderate. These soils are moderately alkaline. Their root zone extends to a depth of 20 to 40 inches. These sc-ils are used for grazing. Representative profile of Minnequa loam, in an area of Minnequa-Manvel loams, in grass, about 0.35 mile Figure 4.—Profile of Minnequa loam. Depth to soft limestone ranges from 20 to 40 inches. east and 0.2 mile north of the southwest corner of sec. 27, T. 19 S., R. 67 W. A-0 to 4 inches, light -gray (10YR 7;`2) loam, brown (10YR 5/3) when moist; weak, thin, play structure parting to weak, fine, granular; soft, friable; nonsticky and slightly plastic; calcareous; moderately alkaline; abrupt, smooth boundary. AC -4 to 10 inches, very pale brown (10YR 7/3) loam, brown (10YR 5/3) when moist; weak, fine, granular structure; slightly hard, friable; nonsticky and slightly plastic; calcareous; moderately alkaline; clear, smooth boundary. C1-10 to 32 inches, very pale brown (10YR 7/3) silt loam, brown (10YR 5/3) when moist; massive; slightly hard, friable; slightly sticky and slightly plastic; calcareous; moderately alkaline; clear, smooth boundary. C2-32 inches, very pale brown (10YR 8/3) soft limestone. The A horizon is loam or silty clay loam 3 to 6 inches thick. The AC horizon is loam or silty clay loam 4 to 10 inches thick. The C horizon is silt loam or light silty clay loam. Depth to soft limestone ranges from 20 to 40 inches. Small fragments of limestone make up less than 10 percent of the soil. Mv—Minnequa-Manvel loams. This complex is in the northwestern part of Pueblo County. It is made up of about 50 percent Minnequa loam and 40 percent Manvel loam. The slope is 1 to 3 percent. Areas of this com- plex are irregular in shape and cover as much as 1,000 acres. The Minnequa soil in this complex has the profile described as representative of the Minnequa series. The Manvel soil has a profile similar to the one described as representative of the Manvel series, but the surface layer is loam and bedrock is generally at a depth of Iess than 6 feet. Included with these soils in mapping are areas of Penrose soils that make up about 10 percent of the acreage. Runoff is medium, and the hazard of erosion is moderate. These soils are better suited to grazing than to other uses. The native grasses are mainly blue grama and galleta. Burrograss has invaded in overgrazed areas. Capability unit VIe-1, nonirrigated; Loamy Plains range site. Mortenson Series The Mortenson series consists of deep, well -drained soils. These soils formed on mountain uplands in residuum weathered from and colluvium that derived from sandstone and granite. The slope is 25 to 65 percent, and elevation is 6,500 to 7,600 feet. The average annual precipitation is 20 inches. The average annual temperature is 45° F, and the frost -free season is 110 to 120 days. The native vegetation is mainly mixed conifers. In a representative profile the surface layer is grayish -brown very stony fine sandy loam about 3 inches thick. The subsurface layer is very pale brown very stony fine sandy loam about 27 inches thick. The upper part of the subsoil is very pale brown very stony light clay loam about 8 inches thick, and the lower part is yellowish -brown very stony clay that extends to a depth of 60 inches or.more. Permeability is slow, and the available water capac- ity is high. The surface layer is neutral, and the sub -