File:Underground water resources of Iowa (1912) (14583395379).jpg

Identifier: undergroundwater00nort (find matches)
Title: Underground water resources of Iowa
Year: 1912 (1910s)
Authors: Norton, William Harmon, b. 1856 Hendrixson, Walter Scott, 1859- (from old catalog) joint author Simpson, Howard E. (Howard Edwin), 1874-1938, joint author Meinzer, Oscar Edward, 1876- (from old catalog) joint author Iowa. Geological survey. (from old catalog)
Subjects: Water-supply
Publisher: Washington, Govt. print. off.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ven in the most favorable artesian sections, how-ever, the ground-water resources are comparatively undeveloped.(See PI. I, in pocket.) Two counties are without deep wells, and thenumber of the deeper sort of shallow wells is comparatively small.Development must come as the population and towns of this regiongrow. The evidence seems to be that for a long time this regionwill have a practically unlimited source of supply of good water forany probable population. Not the least of its good fortune lies in thefact that all ground waters seem to be about equally good from thepoint of view of mineral content. The problem of casing is reducedto its simplest terms, for it is only necessary to put down casings tosohd rock to and through caving shales. There are no deleterious Feeti1300 1200 1100 1000 800700600500 300 200 lOOJ 0 20Q 30040QSOO U. S. GEOLOGICAL SUKVEY < — 26 miles ■ ■ 22 miles - - 26 miles ■ Calmar -)8 miles- WATER-SUPPLY PAPER 293 PLATE V 26 miles ► Ossian Postville
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GEOLOGIC SECTION BKTWEEN McGRj^^K^AND MASON CITY, IOWA ALLAMAKEE COUNTY. 239 waters to case out, and as the upper waters are comparatively softthe matter of the rusting out of casings is not to be so much fearedas it is in other sections of the State. ALLAMAKEE COUNTY. By W. H. Norton.TOPOGRAPHY. Allamakee, the northeasternmost county of Iowa, lies almostwholly in the driftless area. The region is a deeply and intricatelydissected upland, attaining an elevation of 1,300 feet above sea level,and rising about 700 feet above Mississippi River, which forms theeastern boundary of the county. The valleys of the streams areflat floored and wide. The Mississippi flood plain attains a widthof 4 miles and embraces a maze of sandy islands and braided bayous.The floor of the valley of the meandering upper Iowa River has ageneral width of three-quarters of a mile, widening in its lowercourse to a mile and more. The valley of Yellow River is narrowerbut conforms to the same general type. The tribut

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