You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Just 100 yards inside Graham-Swain county line on US Hwy 129, above Cheoah Dam, near Tapoco. Remove constraint Place: Just 100 yards inside Graham-Swain county line on US Hwy 129, above Cheoah Dam, near Tapoco. Place North Carolina Remove constraint Place: North Carolina Place Swain Remove constraint Place: Swain Topic Cyperaceae Remove constraint Topic: Cyperaceae Topic Plantae Remove constraint Topic: Plantae