Hi Craig,
Welcome to the forum and back to biking. I have found this forum to be full of useful information. Sorry I can not answer to where to go in New Jersey only to a website that might help,I am sure other members will chime in over the next few days.
http://www.traillink.com
David.
Last edited by Box worthy; 03-17-13 at 10:35 PM.
Reason: Missing words :(