Missouri River Basin: Conservation, Control, and Use of Water Resources of the Missouri River Basin in Montana, Wyoming, Colorado, North Dakota, South Dakota, Nebraska, Kansas, Iowa, and Missouri (Report by Secretary of the Interior Harold L. Ickes on Bureau of Reclamation\u27s Plan for Basin Development.)

This report by the United States (US) Secretary of the Interior Harold L. Ickes on the US Bureau of Reclamation’s plan for Missouri Basin flood control and development dated May 5, 1944. The US Bureau of Reclamation had been studying the Missouri River basin for several years in order to create a comprehensive flood-control plan by 1945; however, the release of the “Pick Plan” in March of 1944 pushed the Bureau to release their plan early. At over 200 pages, this plan, also known as the “Sloan Plan” named for William G. Sloan who completed it, reflects the detailed study that went into its completion. The Sloan Plan eventually reached a compromise with the competing flood control plan known as the “Pick Plan.” The “Pick-Sloan” plan became US public law on December 22, 1944 through the passing of the Flood Control Act of 1944, known formally as, “Authorizing Construction of Certain Public Works on Rivers and Harbors for Flood Control, and for Other Purposes” or US Public Law 78-534. In addition to the flood control plan, this report contains letters from the US Bureau of the Budget, the US Department of the interior, the US Bureau of Reclamation, the Office of Indian Affairs, the Chief of Engineers from the US War Department, the US Department of Agriculture, and the US Fish and Wildlife Service commenting on the proposed flood control. This document contains tables and maps.https://commons.und.edu/indigenous-gov-docs/1147/thumbnail.jp