USDI, NPS, Missouri Riv. Basin Recre. Survey, Omaha, NE No description specified. 1-2 (2 Records) Documents Preliminary Appraisal of the Archeological and Paleontological Resources of Broncho Reservoir Mercer County, North Dakota (1947) Preliminary Appraisal of the Archeological and Paleontological Resources of Certain Proposed Reservoirs in the Republican River Sub-Basin (1948)