The Grundy Soils of Nebraska

There is an area of about 4,000 square miles of Grundy soils in Nebraska, distributed in the southeastern and east central parts of the state as a large body and outlying areas. (See map.) Within this region are numerous soils of other series including those of the Marshall, Holdrege, Colby, and Knox groups, as well as a great variety of alluvial soils such as Wabash, Cass, Sarpy, Lamoure, etc. South of the Platte Valley, however, and locally north of this valley, those soils having characteristics common to the Grundy group dominate and the profile seems to represent the final result of the soil-forming processes, as governed by the climatic and vegetative environment, in this portion of Nebraska. The boundary of the Grundy area, as indicated on the map, is more or less general. This investigation has been too limited to determine a definite boundary on the western and northern borders where the Grundy merges into adjacent soil areas. On the east, however, it has been possible to bound the soil with considerable accuracy because the topography changes quite abruptly and the