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Geology and ground-water resources of Washington County, Colorado
Harold E. McGovern
1964, Water Supply Paper 1777
Washington County, in northeastern Colorado, has an area of 2,520 square miles. The eastern two-thirds of the county, part of the High Plains physiographic section, is relatively flat and has been moderately altered by the deposition of loess and dune sand, and by stream erosion. The western one-third is a...