Pinckneyville, near Union, South Carolina, preserves the remains of one of the state’s earliest backcountry frontier settlements. Established on February 19, 1791, and named for Charles Cotesworth Pinckney, it occupied a central location in Union County and stood along important overland routes. The site now includes the original town location and the ruins of two brick buildings, the chief visible remains of the community. Pinckneyville declined during the first half of the 19th century as court reorganization shifted local government functions and the railroad redirected trade and travel toward Unionville. By 1850 it had effectively disappeared, leaving archaeological evidence of a settlement shaped by changing transportation and governance.