digital-computer model of the Big Sioux aquifer in Minnehaha County, South Dakota
By: by Neil C. Koch ; prepared in cooperation with the East Dakota Conservancy Sub-district, the South Dakota Department of Water and Natural Resources, and Minnehaha County.
Contributors: East Dakota Conservancy Sub-district (S.D.); South Dakota. Dept. of Water and Natural Resources; Minnehaha County (S.D.); Geological Survey (U.S.)
Series: Water-resources investigations -- 82-4064
Publisher: U.S. Geological Survey; Open-File Services Section, Western Distribution Branch, U.S. Geological Survey
Published: 1983
Place of publication: Huron, S.D; Denver, CO
Language: eng
Number of pages: 49
Subjects: Aquifers -- South Dakota -- Minnehaha County -- Data processing.
Notes: "October 1982."

Bibliography: p. 49.