Ultrarunner extraordinaire, Annette Bednosky has step into the world of race directing and has planned the New River Trail 50K coming up on Oct. 11th 2008.
Here is the race website
I have run several training runs on this converted rail-trail over the years as well as kayak on the river along the mid-point of the course at Foster Falls State Park. It is a very flat fast course with only an ever so slight grade as the river gradually works it's way downhill. It is a beautiful course with the river, the old railroad bridges and tunnels. A lot of history along this route. There are still milepost from the railroad every mile so you can check your splits very accurately. The surface is soft dirt, very similar to Umstead's bridle trails.