Definitely a great place for dogs. Our young puppy loves the trail. Sherwood has an off leash circuit (ie goes in a great big circle) which is covered with a fence in a wooded area: much better than just some plain field with a fence *cough*Withrow*cough*. She can run full tilt in a very safe environment.
http://www.youtube.com/watch?v=U0rxAbUg-Wk&list=UUpPsBTpJnxWloP8-m1R8vkQ