Author: Lewis, Barney D. - Yale University Library GeoBlacklight Search Results

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1. Geology and water-yielding characteristics of rocks of the northern Powder River Basin, southeastern Montana [cartographic material]

1978. 2013-05-22T18:43:26Z. 2013-06-13T15:35:47Z. Lewis, Barney D. Dept. of the Interior, U.S. Geological Survey. English. Public. Powder River Basin (Wyo. and Mont.).

2. Thickness, percent sand, and configuration of shallow hydrogeologic units in the Powder River Basin, Montana and Wyoming [cartographic material]

1981. 2015-07-01T20:16:57Z. 2015-07-14T22:10:28Z. Lewis, Barney D. U.S. Geological Survey. English. cartographic image. Public. Powder River Basin (Wyo. and Mont.).