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Las clay loam, saline (0 to 1 percent slopes) (Lm).- This soil is much more clayey than is normal for Les soils. In some areas used for pasture, the surface layer is loam instead of clap loam, and in cultivated areas where muddy irrigation water has deposited silt and clay, the surface layer is a finer textured clay loam. The subsoil end sub- stratum have s uniform texture of about 60 percent clay. Throughout this clayey materiel are seams of salt, and sand occurs below a depth of 48 inches in some places. Internal drainage is very slow, and salinity is moderate to severe. The water-holding capacity is high, but the water stored is not available to some plants and cannot be used by others. This soil is difficult to work and to mana4e because it is saline, fine textured, and hard to drain. It u hard to drain and to leach of Baits because it is flat and has a clayey sub- soil and substratum. The irrigated areas are best suited to salt-tolerant crops. In most imgated areas, o en ditches supply drainage and keepp the water table low enough for the growth of crops. It is necessary to mein- t.aia these ditches. Timely tillage is important because it prevents cloddiness and compacting. Barnyard manure and green-manure crops help to maintain filth and ~ fertility. (Irrigg~~ed capability unit IVw-1; dryland i capability unit Viw-1; Salt Meadow range site) Las clay foam, sand substratum (0 to 1 percent slopes) (Ln).-This soil has a substratum of sand and grace] at a depth of 20 to 36 inches. It is easier to drain than soils that do not have a substratum o[ coarse material. The water-holding capacity is medium, and most of the water stored is readily available to plants. On this soil good management of irrigation water is important to precent the loss of water by deep penetration. Theu•rigation runs should be favly short. Land leveling is important to help spread theu•rigation water uniformly but deep cuts should not be made until the depth of the soij is determined. Yields of alfalfa are limited in areas where this soil is shallow. Timely tillage is important because it prevents excessive cloddiness or compacting. Barnyard manure and green-manure crops help to maintai^ the content of organic matter and Yo improve filth. {Irrigated capability unit IIIw-2; dryland capability unit VIw-1; Salt Meadow range site) Las clay loam, Band substratum, saline (0 to 1 perceut slopes) (Lo).-This soil has a profile similar to that of Las clay loam, saline, but it is underlain by sand, generally at a depth of 24 to 4S inches. It is therefore easier to drain if enough grade can be established for the drainage outlets. Alfalfa does not grow well on this fine-textured, saline soil, but areas in range produce high yields of meadow grasses. Some areas are so wet and saline that it is neces- sary to drain and leach the soil of salts before the areas can be farmed. Good management of imgation water is needed to prevent seepage from recurring and salinity from becoming worse. Land leveling helps to spread the water uniformly. Timely tillage is important because it helps to precent cloddiness. Barn}•ard manure and green-manure crops improve filth and help to maintain the wntent of organic matter. (Irrigated capability unit IVw-1; dryland capability unit VIw-1; Salt Meadow range site) Las sandy loam {0 to 1 percent slopes) (Ls).-Th surface layer of this soil is 6 to 12 inches thick and i loamy sand in some places. The sandy texture resulte~ when Hooding streams or the wind deposited sand Eton nearby sandy soils. In most areas the substratum is cla3 but some areas are underlain by sand at a depth of abou 4S inches. This soil takes in water at a moderatel rapid rate. It is easy to work, Land leveling helps to spread the water uniformly, an. the irrigation runs should not be too long. Because thi soil is susceptible to erosion by wind, a cover crop i necessary in some cultivated areas where the groun~ mrer LS not adequate for protection. The areas in rang pproduce fair yyields of meadow grasses. (Irrigated caps bility unit IIIS-3; dryland capability unit VIw-1; Sal Meadow range site) Las Animas soils (0 to 1 percent slopes) (Lt) -Then soils are on Dearly level or flat bottom lands. Generall. they lack drainage, because establishing enough grade i; not feasible. The surface layer is predominantly loan and clay foam, but in some large areas it is sandy loam These soils take in water at a medium to rapid rate depending on the tcature of the surface layer. The water table is too high for most crops, but it is beneficial tt meadow grasses. These soils are best suited to meadow grasses and art used mostly for growing them. Meadow ha is cut it many areas, and the grasses produce high yields of foragt for grazing. The native range plants are salt tolerant. (Dryland capability unit VIw-1; Salt Meadow range site) Lintrolo sand (0 to 1 accent slopes) (Lv).-In man places the surface layer of this soil is loamy sand or sand loam, and in many small depressions oroldstreamchannel it i9 even finer textured. Included in areas mappad as this soil are many stet that have gravelly sand throughout the profile. Otht included areas are shallow over gravel. This Lincoln soil is s good source of gravel and sang It is not suitable for cultivation and is mostly in nati~ vegetation. (Dryland capability unit VIIs-2)