The Orr-Herl Mound and Village Site is an archaeological site located along the Ohio River in Hardin County, Illinois. The site consists of a mound, which includes a sizable midden, and the remains of a village. The village was inhabited from roughly 900 to 1500 AD by Mississippian peoples. The site was an important source of fluorspar, which Mississippian peoples used for carvings and beads. The village was likely a manufacturing site for fluorspar items, which were then traded to other villages; this theory is supported by fluorspar artifacts recovered from the Kincaid Site, a Mississippian chiefdom center on the Ohio River in Illinois.