BELKNAP SERIES - The Belknap series consists of very deep, somewhat poorly drained soils formed in acid, silty alluvium on flood plains. Permeability is moderate or moderately slow. Slopes range from 0 to 4 percent, but are dominantly 2 percent or less. Mean annual precipitation is about 43 inches and mean annual temperature is about 56 degrees F. USE AND VEGETATION: Most areas are cultivated. Corn and soybeans are the principal crops. Native vegetation is hardwood trees.

HAYMOND SERIES - The Haymond series consists of very deep, well drained, soils that formed in silty alluvium. These soils are on flood plains and flood-plain steps. Slope ranges from 0 to 3 percent. Mean annual air temperature is about 13 degrees C (55 degrees F), and mean annual precipitation is about 1067 mm (42 inches).  USE AND VEGETATION: Most areas are used to grow corn and soybeans. Some of the narrow flood plains are used for forest or pasture. The native vegetation is deciduous forest, mainly of beech, elm, hickory, hackberry, buckeye, sugar maple, oak, and sycamore.

MONITEAU SERIES - The Moniteau series consists of very deep, poorly drained, moderately slowly permeable soils formed in alluvium. These soils are on flood plains and have slopes of 0 to 5 percent. Mean annual temperature is about 54 degrees F., and mean annual precipitation is about 36 inches. USE AND VEGETATION: Most areas are used for cultivated crops or pasture. Native vegetation is mixed hardwoods.

NODAWAY SERIES - The Nodaway series consists of very deep, moderately well drained soils formed in alluvium. These soils are on flood plains, upland drainageways, and alluvial fans. Slope ranges from 0 to 5 percent. Mean annual air temperature is about 11 degrees C. Mean annual precipitation is about 830 millimeters USE AND VEGETATION: Most areas are cultivated. The principal crops are corn and soybeans. Some areas are in pasture with bluegrass and some cottonwood, willows, and hardwood trees and some areas are forested. The native vegetation is big bluestem, little bluestem, indiangrass, switchgrass, other grasses of the tall grass prairie and scattered deciduous trees