United States, Tennessee, Warren County, McMinnville, 35.6834, -85.76998Smith, Marion O., 1942-20221942/2022Photocopy of typewritten report that explains how saltpeter was extracted from Caves in Tennessee for gunpowder production during the American Civil War. It describes the mining and refining techniques, such as using leaching vats and combining solutions to remove impurities. The text also references specific Caves and historical evidence of mining activities predating the Civil War.image/jp2enghttp://rightsstatements.org/vocab/InC/1.0/Explosives--AdditivesSaltpeterDiscovery and explorationSoldiersNamesVandalismIndependent scholarsUnited States--History--Civil War, 1861-1865--GraffitiCavingSignatures (Writing)|Tourism--Moral and ethical aspectsUnited States--History--Civil War, 1861-1865--Personal narrativesSaltpeter industry--HistoryGunpowder industryGuano industryNitratesCavesSpeleologyJournal of Spelean HistorySpeleologistsGeology, EconomicGraffitiGeotourismSustainable tourismUnited States--History--Civil War, 1861-1865Confederate States of AmericaConfederate States of America. Nitre and Mining BureauManufacturing industries--United States--History--19th centuryManufacturing industries--Confederate States of America--History--19th centuryMineral industries--United States--History--19th centuryMineral industries--Confederate States of America--History--19th centurySaltpeter industry--United StatesGunpowder--United StatesNitrogen industries--United StatesSaltpeter industry--Confederate States of AmericaGunpowder--Confederate States of AmericaNitrogen industries--Confederate States of AmericaBats--ManureGuanoLocal historyCivil War Saltpeter mining near McMinnvilleText