1. Geologic map of the Knoxville quadrangle, North Carolina, Tennessee, and South Carolina Yale Public content 1971. 2012-11-07T19:39:29Z. 2021-09-27T17:47:06Z. Hadley, Jarvis B. (Jarvis Bardwell), 1909-. U.S. Geological Survey. English. Public. North Carolina, Tennessee, and South Carolina.