Laserfiche WebLink
conglomerate. Itforms resistant but thin sandstone ledges that are scattered throughout the study <br />area. These ledges are often exposed at the surface or are encountered within a few feet of the <br />surface. Quaternary age deposits, which are also present in the study area, consist of wind <br />deposited material, stream lain alluvium, and local slopewash. See Section 2.04.6, Geology <br />Description for a more detailed discussion of the geology for the study and surrounding areas. <br />Soil - 1987. The dominant soils within the study area are the Banc, Progresso, Bond, Bowdish, <br />Lazear, Travessilla, and Pinon (sic) series. Also included are large areas of Haplaquolls (no series <br />names assigned). The Barx, Progresso, and Bond series are the predominant cropland soils and <br />were originally dominated by sagebrush-grassland native vegetation prior to cultivation. The Barx <br />series consists of deep well drained sandy loam soils on flat to gently sloping uplands formed in <br />alluvium derived from sandstone. The Bond and Progresso series consistof shallowto moderately <br />deep well drained sandy loam soils on uplands formed in alluvium derived from sandstone. Mixed <br />with the above soils are smaller inclusions of Lazear and Bowdish sandy clay loams. These upland <br />soils are shallow to moderately deep, well drained, and were formed in residuum derived from <br />sandstone and interbedded shales. The Travessilla and Pinon channery sandy loam soils occur <br />on uplands that cannot be cropped or irrigated because of rock outcrops, shallow soils, and <br />topography. These areas have a sagebrush-grass/fort vegetation cover, but the original native <br />vegetation was dominated by pinyon-juniper with associated understory shrubs and herbaceous <br />species. The Travessilla and Pinon channery sandy loams are shallow to very shallowwelldrained <br />soils formed from sandstone. In terms ofagriculture, the latteriwo soils are the poorest in the study <br />area. Other soils found on the study area include the Haplaquolls (no series name assigned). <br />These are poorly drained shallow to deep soils and range from silty clay loams to sandy loams. <br />They have formed in alluvium from recently deposited sediments in minor intermittent streams, <br />sloughs, flood plains, and seepy areas below areas of ground water discharge. The Haplaquoll <br />soils would most probably not be represented in the area if not for the large amounts of <br />supplemental water provided by irrigation activities. See Section 2.04.9, "Soil Resources <br />Information," for a detailed soils discussion. <br />Soil - 1999. In 1998 a new Order I Soil Survey was conducted by Intermountain Resource <br />Inventories Inc. (IRI), Jim Irvine principal investigator. The survey covered lands and properties <br />outlined in the beginning of this chapter. <br />(REVISED 9/1999) 2.04.10 - 3 <br />