"Map Compilation and Infrastructure Design of Optima Reservoir by U.S. Army Corps of Engineers, 1962"1940-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_001_9_0000_10_186The document is a detailed map and project documentation by the U.S. Army Corps of Engineers, focused on the area within Oklahoma and Kansas, particularly around the Beavers River. It includes elements such as conservation and flood control pool limits, existing and proposed infrastructure like roads, power lines and telephone lines, and geographical features like rivers and creeks. Compiled using data from the Tulsa Engineer District, the map dates back to April 1940. The project was approved in June 1962 and is subject to revisions.