I can't speak to what types of rock are around that area, but I had a friend who lived off a tributary of the New River and there was Flint Ridge flint and obsidian points in the fields near his home (outside Pulaski, Va). Since the New River runs South to North into the Ohio River, that explains how non-native material was used in the points found in his area. As close as he was to here (central NC) he had found almost no rhyolite points. It proves that those mountains were a real barrier and the river was quite a trade route.
Good luck with the smallmouths. I had good luck this time of year on the James River using a 4" red with blue flake plasitc worm rigged on a Slider head. Have fun.
Jim
