The Batona Trail at Wharton State Forest, NJ, is a 53.5 mile one-way hike that stretches through the Pine Barrens.
The GPS data for this trail right now only includes 1.7 miles (one-way) along the Batona Trail. You can park near the Carranza Memorial - there's a large parking lot just past the memorial and down the sandy road along the trail.
Camping is allowed on the trail with a permit only and you must camp in the designated camping areas - the permit can be obtained at the park office. Unfortunately there's no dispersed/primitive camping.
The trail is fairly skinny but runs along a sandy road through the park (at least the section mapped here). The surroundings are mostly pine trees with some bogs, fields, and low shrubs. The soil is mostly sandy as well which makes for an interesting hike.
The trail is marked with light-red blazes and has helpful arrow markers when the trail meets intersections and roads.
For better maps, check out http://www.njparksandforests.org/parks/docs/batona14web.pdfhttp://www.njparksandforests.org/parks/docs/batona14web.pdf