The McDade Recreational Trail is a 32 mile trail that is part of the Deleware Water Gap National Recreation Area between Pennasylvania and New Jersey. It is a bit hilly but most inclines are short. There are a couple of gaps in the trail. Overall I would say it makes for a nice visit but would probally not return over and over again.
For more information visit the National Park Service website. If you decide to visit this trail you should allow some time before or after your ride to check out some of the beautiful waterfalls in the area. Dingman's Falls are very close but there are others.