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`' lhb lolls Information h not site speclflc. Onshe irtyestigation, testing and analysts by competent personnel Is needed before construe- ~; 30 lion or other engineering use of soils. '•_ 64--Louviers-Travessilla complex, 20 to SO percent slopes. T~~s map unit is on hills, ridges, hogbacks, and canyonsides. The native vegetation is mainly pinyon and juniper. Elevation is 5,300 to S,300 feat. The average annual precipitation is 13 to 15 inches, the average annual air temperature is 48 to 52 frost-free period is 120 to 150 days. This unit is about 40 percent Louviers Travessilla soil. The Louviers soil is on scarp side of hogbacks. The Travessilla s ridges, the upper part of side slopes, and resistant bedrock on hogbacks. degrees F, and the average soil and 35 percent side slopes and on the oil is on canyon rims, on areas of weather- Included in this unit is about 5 percent sandstone Rock outcrop on ridges, canyon rims, and side slopes. Also included is about 5 percent moderately deep, clayey soil on side slopes. Also included is about 5 percent Casca~o very gravelly sandy loam on the crest of side slopes and an foot slopes. The (rasCa,JO soil is deep and gravelly. Also included is about 5 percent deep Kim loam and 5 percent deep Otero sandy loam in drainageways. A few small areas of Gypsum land along the south edge of Six mile Park are also included. Tha Louviers soil is shallow and well drained. It formed in residuum derived dominantly from shale and siltstona. Slope is 20 to SO percent. Typically, the surface layer is light brownish gray very channsry clay loam about 3 inches thick. Tha substratum is mainly clay about 13 inches thick over shale at a depth of 16 inches. The soil is neutral to 3 inches, mildly alkaline to 6 inches, and neutral below that depth. Similar soils that era calcareous and moderately alkaline era also found in this unit The surface layer is very cobDly or vary stony in some areas. r, ~~y