SOIL SURVEY OF BAXNER COUNTY, NEBRASKA. 23 



The several soil series identified and mapped in the county are de- 

 scribed as follows : 



The surface soils of the types in the Rosebud series are dark gray 

 to brown; the subsoils are light colored and highly calcareous. A 

 characteristic feature is the light-gray to almost w^hite color of the 

 deeper subsoil. The Rosebud soils are derived from the light- 

 colored, calcareous, unconsolidated Tertiary deposits of the High 

 Plains, mainly of the Arikaree and Ogallala formations. Their 

 topography varies from almost flat to steeply rolling. In places the 

 surface is excessively eroded or dissected. The more hilly areas in 

 many places are dotted with white exposures of the underlying for- 

 mations. 



The types in the Dunlap series are distinguished by a brown sur- 

 face soil, 6 to 12 inches deep, underlain by a brown, compact silt loam. 

 This passes gradually through a light-brown heavy silt loam into a 

 light-gray calcareous silt. The Dunlap series occupies the flat tops 

 of the high tables representing remnants of the original High Plains. 

 Drainage channels are not established over the entire surface. The 

 material has been derived through weathering from the fine-grained, 

 calcareous sandstones of Tertiary age, under conditions of restricted 

 drainage. The Dunlap series differs from the Rosebud series in its 

 heavy, compact subsoil and more nearly level topography. 



The surface soils of the types included in Epping series are brown 

 to gray, and the subsoils light buff and normally somewhat heavier 

 than the surface layer. The soil material is of residual origin, being 

 derived from the weathered Brule formation. The subsoil is usually 

 composed of the unweathered compact silt or silty clay loam of the 

 Brule formation. The Epping series occupies undulating or dis- 

 sected plains and sloping or comparatively level flats. Drainage is 

 generally thorough, and in many places excessive. 



The Valentine soils consist of a dark-brown to grayish-brown sand, 

 differing little throughout the 3-foot section. A characteristic fea- 

 ture is the absence. of calcareous material. The Valentine soils are 

 probably composed of partly weathered wind-blown material derived 

 originally from the underlying Tertiary sandstone. The material 

 has been so shifted by wind and water and subsequently weathered 

 that it has lost most of its residual characteristics. The soils occupy 

 level to sharply rolling upland plains. They differ from the mem- 

 bers of the Rosebud series in the absence of a light-colored subsoil 

 and in their lower lime content. 



The types of the Bridgeport series are grayish-brown or brown- 

 The material below 6 to 12 inches is in places slightly lighter in color 

 than that above, but in most areas there is practically no change in 

 the 3-foot section. The Bridgeport soils consist of recent alluvial 

 and colluvial material carried down from the adjoining uplands by 



