Mineral resources at five reservoir sites and one local protection project, Nishnabotna River Basin, Audubon, Shelby, Pottawatamie, and Cass Counties, Iowa, 1967.
Authors
Publication date
1 December 1967
Publisher
Abstract
At the request of the Omaha District Office, U.S. Army Corps of engineers, the Bureau of Mines investigated mineral resources in and near five proposed reservoir sites and one local protection project in the Nishnabotna river basin, Audubon, Shelby, Pottawattamie, and Cass Counties, Iowa
