i hope i have your location right, kev. if so, this seems like a decent website. they appear to have detailed directions to the trailheads (a pet peeve of mine) but i don't live there so can't be sure.
http://www.roanoke.org/hiking
as a sidenote i'll mention that most sierra club chapters are a mix of groups of people that like to hike and groups that want to politic. i know a lot here wouldn't want anything to do with their politics but usually they have really good hiking resources on their website. i'd recommend them to almost anyone anywhere else who wants a group hike with an experienced leader.
your local chapter is apparently dominated by people who like everything about the environment other than being out in it. there are no scheduled hikes listed. i find that dispiriting. or at least i would if i lived where you do.