Smith County, Tennessee: History
Smith County was established in 1799 from a portion of Sumner County, and was named for Daniel Smith, a U.S. Senator and former Secretary of the Southwest Territory. The location of the county seat was hotly contested between Bledsoesborough (near modern Dixon Springs) and William Walton's ferry and tavern at the confluence of the Caney Fork and the Cumberland River. In 1804, voters chose Walton's site, and a town, named Carthage, was platted the following year.
Smith County was the site of a large saltpeter mine. Piper Cave, located near Monoville, contains the poorly preserved remnants of dozens of saltpeter leaching vats. Most saltpeter mining in Middle Tennessee took place during the War of 1812 and the Civil War, though the exact dates of this operation are unclear.