Here are some maps and info

Ocala Adventure Trail http://www.fs.fed.us/r8/florida/ocala/r ... eTrail.pdf

45 miles of ATV trails.

Centennial Trail (pdf, 2 Mb) http://www.fs.fed.us/r8/florida/ocala/r ... lTrail.pdf

Does not say how many miles of trails has to be at least 20 miles?

North of Salt Springs: Hog Valley Trail, Longleaf Trail, Delancy Loops, Tobacco Patch Trail, Pipeline Trail, Motorcycle Loop (pdf, 2 Mb) http://www.fs.fed.us/r8/florida/ocala/r ... sNorth.pdf

Trails

There are several different OHV trail opportunities available to riders:

* The Ocala North OHV system offers 125 miles of trail which include:
o 14 mile motorcycle only trail
o 35 miles for motorcycles, all terrain vehicles (ATVs), and utility vehicles (UTVs) less than 50 inches wide
o 76 miles classified as "mixed use" which means OHVs share the trail with licensed vehicles.
* The 16 mile Wandering Wiregrass Trail is a great family day ride through a longleaf pine wiregras ecosystems. Motorcycles, ATVs, and UTVs less than 50 inches are allowed on the trail.
* The Ocala Adventure Trail, currently 47 miles, offers a unique opportunity to view the Big Scrub ecosystem. This globally imperiled ecosystem is the largest contiguous block of sand pine scrub in the world. The 47 mile Centennial Trail offers various day opportunities along the trail. Riders may park at one of the OHV parking corrals to enjoy day use activities. Parking corrals are located at Farles Prairie, Blue Sink and Big Scrub Campground. Available activities at Blue Sink and Farles Prairie include fishing, wading, picnicking and wildlife viewing. Unlicensed vehicles less than 65 inches are allowed on the Ocala Adventure Trail system. A 20 mph speed limit is enforced on this trail.
* The Tread Lightly! Four Wheel Drive Way is an 81 mile system of Forest Service roads available for licensed vehicles only. The purpose of this trail is to prevent resource damage, to encourage study and enjoyment of nature, highlight the importance of conservation, provide scenic and visual enjoyment, and instill appreciation of the nation's history, cultural resources and traditional values.


All found here http://www.fs.fed.us/r8/florida/ocala/r ... v.overview