A press release from East TN State University says this could be the last weekend to see Fall colors at the highest elevations.“This weekend may be the last good opportunity to enjoy the splendor and botanical diversity of the Appalachian Highlands,” said Travis Watson, ETSU’s campus arborist who has monitored autumn foliage for weeks. “Bundle up and head on out.” Some of the best leaf changing is happening from Kingsport to Morristown and the valleys of East Tennessee.