According to the U.S. Census Bureau, the county has a total area of 898 square miles (2,325.8 km2), of which 894 square miles (2,315.4 km2) is land and 3 square miles (7.8 km2) (0.35%) is water.
Chase County is geographically diverse. The spring-fed Frenchman Creek crosses the county from west to southeast. From Enders to Wauneta the path of the creek exposes limestone outcroppings. North of Wauneta is an area of significant loess deposits, including the typical steep-walled canyons. Rolling Sandhills formations are found in the north-central and southwestern areas of the county.
The Pierre Shale of Upper Cretaceous Age is the underlying structure of the region. At Enders Dam this formation is found at a depth of 175 feet (53 m) below the valley floor. The Ogallala Formation of Pliocene Age overlies the Pierre Shale. The Ogallala Formation is composed of fine to course sand, some gravel, calcareous silt, silty sands, silts and clays. Various degrees of calcareous cementation occur, resulting in lenses of varying loose unconsolidated to very firm compact materials at irregular intervals. The Ogallala beds lie almost horizontal and structural irregularities, such as faulting, have been observed in the area.
The Ogallala Formation is of vital importance to the county and the surrounding areas. The associated Ogallala Aquifer is the primary source of water for the population and livestock, and an important input into agricultural economy of the county.
The main highway routes crossing Chase County are U.S. Route 6 which crosses east-west and Nebraska Highway 61 which crosses north-south. The county is served by the Nebraska Kansas & Colorado Railway. NKCR is an operating company of OmniTRAX. This short line operates the branch line which interchanges with the BNSF. This line enters the county near the southeastern corner passing through Wauneta and Enders, terminating at Imperial.
Read more about this topic: Chase County, Nebraska
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