Date of this Version
Reed, E.C. and Keech, C.F. Preliminary estimate of the underflow across the South Dakota-Nebraska State line in the Niobrara River and Ponca Creek drainage basins. U.S. Geological Survey, Lincoln: 1957
The purpose of this paper is to estimate the amount of ground water flowing across the South Dakota-Nebraska State line within the Niobrara River basin, including the Ponca Creek basin. The study was made at the request of the Niobrara River Compact Commission. The estimates fiven in the paper are preliminary and subject to revision.