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Local unconformity in the Lance formation in T. 131, R. 81 W. Sioux County, North Dakota. 1909. Plate 5-B in U.S. Geological Survey. Bulletin 575. 1914.
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This coverage contains information about the buried valleys within the Standing Rock Indian Reservation, Sioux County, North Dakota, and Corson County, South Dakota. The delineation of the buried valleys was included as part of the surficial geology map (figure 5) created by Howells (1982). The digital data were produced by the U.S. Geological Survey (USGS) in cooperation with the U.S. Environmental Protection Agency. Figure 5 in...
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Grayish white sandstone at the top of the Fox Hills sandstone in the south bank of the Cannonball River, 3.5 miles west of Solen, Sioux County, North Dakota. Circa 1923. Plate 4-A in U.S. Geological Survey. Professional paper 158. 1930.


    map background search result map search result map Local unconformity in the Lance formation in T. 131, R. 81 W. Sioux County, North Dakota. 1909. Grayish white sandstone at the top of the Fox Hills sandstone in the south bank of the Cannonball River. Sioux County, North Dakota. 1923. Buried valleys within the Standing Rock Indian Reservation, Sioux County, North Dakota, and Corson County, South Dakota Local unconformity in the Lance formation in T. 131, R. 81 W. Sioux County, North Dakota. 1909. Grayish white sandstone at the top of the Fox Hills sandstone in the south bank of the Cannonball River. Sioux County, North Dakota. 1923. Buried valleys within the Standing Rock Indian Reservation, Sioux County, North Dakota, and Corson County, South Dakota