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Page 6150, results 153726 - 153750

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Geology and zinc-lead deposits in the Catfish Creek area, Dubuque County, Iowa
C. Erwin Brown, Jesse W. Whitlow, Percy Crosby
1957, Miscellaneous Field Studies Map 116
A detailed geologic study was begun in 1951 by the U.S. Geological Survey in cooperation with the Iowa Geological Survey to appraise the potentialities of the Iowa part of the Wisconsin-Illinois-Iowa zinc-lead district for (1) zinc ore in rock strata that contain pitch-and-flat zinc ore bodies elsewhere in the mining...
Geology of the southern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana
M. R. Klepper, R. A. Weeks, E. T. Ruppel
1957, Professional Paper 292
The geology of an area of about 270 square miles in the southern Elkhorn Mountains, west of Townsend in west-central Montana, is described. The mountains in the southern part of the area comprise northward-trending alternating ridges and valleys underlain principally by folded sedimentary rocks. They merge northward into the higher...
Salt water and its relation to fresh ground water in Harris County, Texas
Allen G. Winslow, William Watson Doyel, L.A. Wood
1957, Water Supply Paper 1360-F
Harris County, in the West Gulf Coastal Plain in southeastern Texas, has one of the heaviest concentrations of ground-water withdrawal in the United States. Large quantities of water are pumped to meet the requirements of the rapidly growing population, for industry, and for rice irrigation. The water is pumped from...
Supplemental irrigation in Maryland in 1957
Gerald Meyer
1957, Open-File Report 57-71
This memorandum was prepared to accommodate requests for information on the extent and amount of supplemental irrigation in Maryland and the sources of water used for this purpose....
Water resources of the Yadkin-Pee Dee River basin, North Carolina
Robert Eugene Fish, H. E. LeGrand, G. A. Billingsley
1957, Water Supply Paper 1415
Sufficient water is available in the basin of the Yadkin and Pee Dee Rivers to meet present requirements and those for many years to come if water use increases at about the present rate. Data presented in this report show that the average annual streamflow from approximately 82 percent of...