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Landforms of the conterminous United States — A digital shaded relief portrayal Landforms of the conterminous United States — A digital shaded relief portrayal

Our map was made by digital image-processing, a technical specialty related to the broader fields of computer graphics and machine vision (Dawson, 1987; Kennie and McLaren, 1988). The technology includes the many spacially based operations first brought together and developed systematically to manipulate Ranger, Mariner, Landsat, and other images that are reassembled from spacecraft...

Map showing contours on top of the upper Cretaceous Mowry Shale, Powder River basin, Wyoming and Montana Map showing contours on top of the upper Cretaceous Mowry Shale, Powder River basin, Wyoming and Montana

This map is one in a series of U.S. Geological Survey Miscellaneous Field Studies (MF) maps showing computer-generated structure contours, isopachs, and cross sections of selected formations in the Powder River basin, Wyoming and Montana. The map and cross sections were constructed from information stored in a U.S. Geological Survey Evolution of Sedimentary Basins data base. This data...
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