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13 <br /> moderately calcareous (fizz point = 3-4) and have a pH of 7.4-7.9. <br /> The C horizons may range in thickness fran 6" to 40" or more, <br /> grading into soft calcareous shales. Persayo clay loam contains <br /> fragments of sandstone and shale in most parts of the profile. <br /> Textures range from sandy clay loams to sandy clays; colors range <br /> from yellowish brown (10YR5/6) , dry, to strong brown (7.5YR 5/6) <br /> or even reddish brown (2.5YR 5/4) , moist. There seems to be some <br /> influence of the reddish colored aeolian deposits found in many <br /> parts of southwestern Colorado. Structure is coarse angular blocky <br /> to massive; hard to very hard, dry; friable moist and sticky, wet; <br /> violently effervescent; the pH ranges fron 7.6-8.0. Very few roots <br /> were noted in this section of the profile. <br /> 9904 D 1,2 Topsoil Suitability. These steeply sloping, shallow <br /> soils over sandstone and shale can be expected to be less suitable <br /> for topsoil as they are thin over sandstone and shale, having varying <br /> quantities of sandstone and shale in the profile and have poor <br /> texture-consistence relations. On these soils and slopes an <br /> average 4" of fair topsoil may be obtained but a cut of 1 foot will <br /> likely produce materials rated poor by the prevailing guidelines. <br /> Prime Farm Land Considerations. These soils are suited for native <br /> grasslands but not for cultivation. <br /> Soil Distribution and Extent <br /> The soil pattern of the 116-acre tract is shown on Map 1 at a scale <br /> of 1 inch = 400 feet. The major soil, Shavano sandy clay loam, <br /> 5-20% slopes, occupies over 560 of the area. A small part, 10.85 <br /> acres, in the northwest portion surrounding the farm house is a <br /> gentle divide of 2-5% slope. Most of these soils are on moderate <br />