162 Shambo loam, 2 to 8 percent slopes 



168 Spang sandy loam, 2 to 8 percent slopes 



169 Spang-Bimey complex, 8 to 15 percent slopes 

 171 Spinekop silcy clay loam, to 2 percent slopes 

 1 90 Vanstel loam, 2 to 8 percent slopes 



197 Yamac loam, to 2 percent slopes 



198 Yamac loam, 2 to 8 percent slopes 



199 Yamac loam, 8 to 1 5 percent slopes 



201 Yamac-Bimey complex, 2 to 8 percent slopes 



202 Yamac-Bimey complex, 8 to 1 5 percent slopes 

 205 Yamac-Busby complex, 2 to 8 percent slopes 



208 Yamac-Delpoint loams, 4 to I 5 percent slopes 



209 Yamac- Redcreek loams, 2 to 1 5 percent slopes 



MAP UNIT DESCRIPTIONS 



1 8 - Bimey-Cooers-Kirby complex, 2 to 1 5 percent slopes. 



This map unit is on uplands. Slope is 2 co I 5 percent. 



This unit is about 40 percent Bimey channery loam, 35 

 percent Cooers loam, and 25 percent Kirby channery loam. 

 The Bimey and Cooers soils formed in colluvium derived 

 fix)m baked sandstone. The Kirby soil formed in residuum 

 derived from baked sandstone. 



The Bimey soil is deep and well drained The surface 

 layer is a channery loam about 5 inches thick. TTie substra- 

 tum to a depth of 48 inches or more is extremely channery 

 sandy loam. Permeability is moderate and available water 

 capacity is about 3 inches in the upper 48 inches. 



The Cooers soil is deep and well drained. The surface 

 layer is a loam about 4 inches thick. TTie underlying material 

 to a depth of 48 inches or more is a loam or channery loam. 

 Permeability is moderate and available water capacity is 

 about 8 inches in the upper 48 inches. 



The Kirby soil is shallow over fractured baked sand- 

 stone. The surface layer is a channery loam about 5 inches 

 thick. The underlying material to a depth of about 1 8 inches 

 is a very channery loam. Below this, to a depth of 48 inches 

 or more, is fractured baked sandstone. Permeability is rapid 

 and available water capacity is mainly 1 to 2 inches in the 

 upper 48 inches. 



This map unit is poorly suited to irrigated crops because 

 of the low available water capacity of the Bimey and Kirby 

 soils, and areas of rock outcrop. This map unit is class 6 

 irrigated. 



28 - Bitton-Twin Creek-Ringling, dry, complex, 2 to 1 5 

 percent slopes. This map unit is on uplands and fans. Slope 

 is 2 to 15 percent. 



TTiis unit is about 40 percent Bitton channery loam, 35 

 percent Twin Creek loam, and 25 percent Ringling 

 channery loam. The Bitton soil is on side slopes, the Twin 

 Creek soil is on side slopes and short fans, the Ringling soil 

 is on knobs and ridges. The Bitton and Twin Creek soils 

 formed in colluvium derived from baked sandstone and 

 shale, the Ringling soil formed in residuum derived from 

 baked sandstone and shale. 



The Bitton and Twin Creek soils are deep, and the 

 Ringling soil is shallow to fractured baked sandstone. 



This map uni t is poorly suited to irrigated crops because 

 of the lowavailable water capacity of the Bitton and Ringling 

 soils and the shallow depth to fractured baked sandstone in 

 the Ringling soil. This map unit is class 6 irrigated. 



36 - Borollic Camborthids-Ustic Torrifluvents complex, 

 to 8 percent slopes. This map unit is on channeled fans, 

 terraces and flood plains. Slope is to 8 percent. 



This unit is about 65 percent Borollic Camborthids and 

 35 percent Ustic Torrifluvents. The Borollic Camborthids 

 are on fens and terraces, the Usdc Torrifluvents are on low 

 terraces and flood plains. 



TTiis map uni t is poorly suited to irrigated crops because 

 the unit is dissected by stream channels and some areas 

 contain a high percentage of coarse fragments. This map 

 unit is class 6. 



40 



