First, remember everything on the 100K maps are drawn at a 1:100,000 scale. So they are not very accurate. If you don't zoom in any more than .2 miles, they are fairly accurate. But if you zoom in much more, they tend to be way off. I bought the T model for the DEM data. The maps suck but are good if you don't have anything else. The topo maps on this site are much better-however, they tend to not have trails.
That's where My Trails comes in. It is a transprent overlay map. When you load it on your GPS with another map, it will show trails and POIs on top of the other map you have loaded. In MapSource and BaseCamp, all you see is the trails. My Trails has extremly good coverage for the Pisgah NF. The Forest Service (who provided me all thier GIS data) has GPSed most of thier trails an they have extensive POIs like backcountry campsites. My Trails has the Ranger Station/visitor center you mentioned (and the amptheater, bridges, info signs and campground). It also has lots of FS roads including 475c which goes back to the fish hatchery. If anything is missing or wrong, you can GPS it or trace it in GoogleEarth and I can add it to My Trails.