Mines and mineral resources

A map titled "Map of Morgan County in the Central Mineral and Coal Fields of Missouri." The map shows mines, mills, schools, churches, businesses, rivers, creeks, roads, railroads, and other details. The map has been annotated to show a camp site, infantry range, maneuver area, and artillery range just southwest of Versailles, Missouri. Missouri Route 5, 52, and 135 are highlighted in pencil. Handwriting on the back reads: "Senatorial Papers of Harry S. Truman. Nat. Def. Projects-In Missouri-April 1941. Ltr. of June 27, 1941."

A "Topographic Map of the State of Arkansas." The map shows oil fields, gas fields, pipe lines, highways, contour lines, elevations, rivers, national forests, boundaries, mines, quarries, geological composition, and other details. A sticker on the back reads: "Topographic Map, State of Arkansas." Handwriting on the back reads: "Official File 273, N.D."

A "Geologic Map of Arkansas." The map includes tables, indexes, and cross-sections detailing the geologic composition of each region in Arkansas. The map also shows boundary lines, rivers, railroads, fault lines, power dams, power transmission lines, oil pipe lines, gas pipe lines, mines, quarries, oil and gas fields, and other details. A sticker on the back reads: "Geologic Map, State of Arkansas." Handwriting on the back reads: "Official File 273, N.D."