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Records of water levels in the Big Sioux Aquifer, Minnehaha County, South Dakota, 1981
[unknown]
1983
Antarctica A Keystone in a Changing World
unpublished
Preserved Fulltext
Wells are numbered according to a system based on the Federal land-survey of eastern South Dakota (fig. 1 ). The well number consists of township followed by "N", range followed by "W", and section number, followed by a maximum of four upper-case letters that indicate, respectively, the 160-, 40-, 10-, and 2&-acre tract in which the well is located. These letters are assigned in a counter-clockwise direction beginning with "A" in the northeast quarter. A serial number following the last letter
doi:10.3133/ofr821020
fatcat:trts6tmxk5gcvnv4abigyb5jsm