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not set up soil series for these soils because sufficient acreage does not exist. SCS <br /> classified these soils as Aquolls during the San Miguel Area soil survey. <br /> Gently sloping uplands comprise most of the study area. Progresso and Bond soils are <br /> found on these areas. Bond is less than 20 inches to bedrock, whereas Progresso is 20 to <br /> 40 inches. Both soils developed in residuum from interbedded sandstone and shale and have <br /> well developed Bt argillic horizons and underlying Bk calcic horizons. The Barx soil is <br /> found as an inclusion with Progresso and Bond. Bowdish and Lazear soils are found on <br /> similar appearing uplands in the western part of the study area but are derived dominantly <br /> from shale. Lazear is less than 20 inches to bedrock, whereas Bowdish is 20 to 40 inches. <br /> Travessilla and Pinon soils are developing in thin residuum from sandstone in areas where <br /> sandstone ledgerock is near or at the surface. These areas are typically small in size <br /> but are numerous and scattered throughout the study area. Weathered shale bedrock is <br /> often found beneath the relatively thin sandstone ledgerock. Both Travessilla and Pinon <br /> are less than 20 inches to sandstone and have a sandy loam texture with less than 18 <br /> percent clay. Pinon soils have a zone of secondary calcium carbonate accumulation. <br /> The Barx soil is deep (40 to 60 inches to either sandstone or shale bedrock) to very deep <br /> (greater than 60 inches to either sandstone or shale bedrock) and has a well developed Bt <br /> argillic and Bk calcic horizon. It has loam, sandy clay loam, or clay loam textures in <br /> the Bt particle size control section, and is developing in wind deposited loess over <br /> residuum from sandstone and shale at depth in the soil profile. The Barx soil is found on <br /> the gently sloping mesa-like surface in the northwest and southeast corners of the study <br /> area. Most of these areas are in irrigated cropland and have been classified by SCS as <br /> "prime farmland" if sufficient irrigation water is present throughout the growing season. <br /> Methodology <br /> Tasks performed to accomplish project objectives included: <br /> o review of existing soils information <br /> o detailed field mapping of soils (Order 1) <br /> o soil sampling and profile description <br /> o evaluation of soils for reclamation potential <br /> The methodology used during the soil surveys followed standard techniques and procedures <br /> of the National Cooperative Soil Survey as outlined in the following references: <br /> 9-5-7 Revised 04/11/88 <br />