United States, Tennessee, Marion, West on highway 27 towards Powells Cross-roads. 7.0 miles past Kellys Ferry Road. Unmarked foot trail S of 90 degree turn on highway 27. Approximately 1.5 miles SSE on foot trail to Ditch Gap. Specimen found 1.0 miles due E from Ditch Gap. Site in Prentice Cooper State Forest between Marshall Fork Branch and Shelton Creek.