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