Jenny Jump State Forest is a 4,466 acre state forest in Warren County, New Jersey. It has rolling terrain with rocky outcroppings and boulders that line the trail. There is evidence that great glaciers once covered the forest. There are panoramic vistas of the Highlands and the Kittatinny Mountains and Valley to the west. You can see the Great Meadows in the east from the top of Jenny Jump Mtn. Jenny Jump State Forest is popular with amateur astrological photographers because there is very little light pollution here.
Eleven miles of hiking trails and three miles of hiking /mountain bike trails offer magnificent views of the mountains and scenic Mountain Lake. The Summit Trail, at an elevation of 1,090 feet, offers a view of the Delaware Water Gap and the Pequest Valley.
State Park Service area is open to hunting. The forest is a favorable habitat for deer, turkey and small game. Beaver Brook is stocked with trout 4 times in the spring.
Camping in the park requires a permit.
Pets are prohibited in overnight facilities. This area has frequent sightings of black bears.