Plate 9--Irrigation and observation wells on the Christopher Sobba farm northwest of Fowler. A, Irrigation well (38) in operation. B, Shelter enclosing automatic water-stage recorder and recording microbargraph in operation at observation well (37), 320 feet north of irrigation well.
Kansas Geological Survey, Geologic History of Kansas
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Web version February 2004. Original publication date Dec. 1942.