I don't know of anything legal in Delaware, but there's Rausch Creek in Tremont, PA. PA has been closing down trails, much like every state on the east coast. Your best bet is to find another wheeler in your area and ask where they go. The only place I go to anymore in PA is Rausch Creek.

-Michael
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Michael Girardo
East Coast Xterra Challenge
swampwrecker@ecxc.com