When I'm in the NC mts, I listen constantly to a near-unique radio station, WNCW, in the great metropolis of Spindale, at the wonderfully-named Isothermal Community College.
Hard to describe the playlist of a station that gives you Louis Armstrong, followed by the Avett Bros, followed by the Sparrow Quartet, followed by Bob Dylan, followed by Levon Helm, followed by Sarah Jarosz, followed by Billie Holiday ..... Not sure what "Americana" music means exactly, but something to do with roots music and a fusion of many different genres.
This morning, it's all Doc Watson.
When you're in the mts or surfing the web, check it out:
http://www.wncw.org/
If you just click on Playlist, I think you might be intrigued.