Andrews Bald is located in the Great Smoky Mountains National Park. Trailhead access is off the parking lot for Clingmans Dome which is closed from Dec. 1 - March 31. You can still hike to the dome, which is I think 7 miles on the Appalachian Trail, but the road is closed. It's a pretty good hike. It will get your heart rate up a bit on the way back out as it is mostly uphill. The day we went we were in the clouds most of the time so our view was somewhat limited but it did break enough to give us a view worth the hike. Here is more info about the trail.