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<br />CHAPTER III - LAND <br /> <br />As st~ted previously this~eport concerns improvements to <br />Summit Reservoir which will allow the historic operational mode to <br />continue. No new irrigated lanos will result from the improve- <br />ments. This chapter summarizes the information on the irrigated <br />lands served by Summit. <br /> <br />Land Classification <br /> <br />The SCS is conducting a detailed soil survey fo~ Montezuma <br />County, that will be published in three years. -The survey shows <br />that the irrigated land under the Summit system consists of deep, <br />medium textured soils forming in red wind deposited material and <br />moderately deep, moderately fine to fine textured soils forming in <br />material weathered shale. The soils are well draineo, have slow <br />to very slow permeability and high waterholding capacity, and are <br />moderately erodible. Slopes range from three to twelve percent. <br /> <br />The survey shows that ,all irrigated land is suitable for <br />production of locally adopted crOps. The red wind deposited soils <br />are predominant in the project area and are productive and easy to <br />manage. <br /> <br />Approximately 4000 acres of land were identified as presently <br />under irrigation. Another 1500 acres was determined to be non- <br />irrigated cropland. Summit allows water to be used on different <br />tracts on a yearly basis so the same 4000 acres ,is generally not <br />irrigated every year; however, this occurs on a very limited <br />basis. <br /> <br />The native vegetation surrounding the irrigated lands are oak <br />brush, shrubs, grasses and ponderosa pine. The grasses are <br />generally western wheatgrass, Arizona fescue, mountain muhly, <br />needle grasses, Kentucky bluegrass, and pine drop seed. Common <br />shrubs are mountain mahogany, bitter brush, service berry, sage <br />brush, and snow berry. <br /> <br />Service Area <br /> <br />The lands served by Summit are identified on the project map <br />located at the ~ront of this report. <br /> <br />Land Use <br /> <br />The ir~igated cropland is divided into 800 acres of pasture, <br />1200 acres of small grain, and 2000 acres of hayland for a total <br />of 4000 acres. The pasture land is utilized by cattle and sheep <br />which are raised in the area. Table III-A shows typical yields <br />from each category of cropland. <br /> <br />-10- <br />