Last updated: April 18, 2026
- Type: Historic unincorporated community
- Status: Small residential and recreation area along Nickajack Lake
Shellmound is a historic populated place along the Tennessee River in the southeastern part of Marion County. Its name comes from the large freshwater mussel shell middens that once marked native occupation sites along this stretch of the river, mounds of discarded shells accumulated over centuries of indigenous use.
Indigenous origins
The shell middens that gave Shellmound its name are archaeological evidence of long indigenous habitation along the Tennessee River. The Cherokee Lower Towns period in the late 18th century further marked the area, though the specific towns of Nickajack and Running Water were slightly west of modern Shellmound.
19th and early 20th century
Shellmound grew as a small river community. Rankin's Ferry operated on the Tennessee River between Guild and Shellmound well into the late 1920s, providing the main crossing in the era before modern bridges. The ferry was an important regional connection for farmers, mail carriers, and commerce along the gorge.
Modern Shellmound
With the construction of Nickajack Dam and the formation of Nickajack Lake in 1967, Shellmound's river frontage became lakeside. Today the area hosts a TVA recreation area and campground, lakeside homes, and residential neighborhoods. The archaeological significance of the historic shell middens is largely obscured or submerged, but the place name preserves the memory.
Landmarks
- Shellmound Recreation Area (TVA, on Nickajack Lake)
- Nickajack Lake waterfront