A ton of trails with varied degrees of difficulty, vegetation and terrain.
The terrain is varied and the trail system extensive. There is something for all skill levels. The best bet is to park and just ride. Maybe catch up with some locals you know the area and get a map from the ranger station. Plan to spend some time here, you won't be disappointed.
How to get there:
From Baltimore, head North on I-95. At MD 213 head North and catch MD 273 at Fair Hill. Take MD273 East to a left on Appleton Road. The center is about 3 miles from Newark, DE. From Wilmington, DE take 495 West then catch 273 West.
Buy a map at the ranger station for $2. It's well worth it and you'll learn the trails faster.