There are over 13 miles of trails within the park for hiking and horse back riding park trails are open from 8:00 a.m. until approximately a half hour before sunset. Please check entrance signs for times as they change with teh season.<br />
Source: National Park Service
From Interstate 287 South or North:<br /><br />Take Exit 30B (Bernardsville. At the traffic light, turn right onto Route 202 North. Turn left at light for Tempe Wick Road (Route 646). (Note that road has a different name on the right side, don't let this confuse you.) Continue on Tempe Wick Road for about another 1 ½ miles. The entrance to the Jockey Hollow unit of Morristown National Historical Park will be on your right.
http://www.tripleblaze.com/trail.php?c=3&i=3015