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Jenny Jump State Forest, New York City Overview

Jenny Jump State Forest is located in northern Warren County in the northwestern section of New Jersey, on the 1,112-foot high, 6-mile long Jenny Jump Mountain ridge. It is a state-run park in the state of New Jersey and is controlled by the New Jersey Department of Environmental Protection's Division of Parks and Forestry (NJDEPDPF). The park's forests are part of the Northeastern coastal forests ecoregion. The park has wide-ranging hiking trails on the mountainside, featuring massive glacial boulders from the Wisconsin glaciation which range back to roughly 21,000 years ago. The park's amenities include the Greenwood Observatory which was built by the United Astronomy Clubs of New Jersey (UACNJ) in 1995.

The observatory is open to the public to stargaze only on Saturday nights from April through October. There are many observatories located at Jenny Jump, such as the Brady Observatory which houses a 178MM Refractor as well as a solar observatory. This area is used by many amateur astrophotographers as Jenny Jump park has the darkest skies in New Jersey.

The park offers camping facilities from April to October, and also has shelters available throughout the year.

Other than the hiking trails, the State Forest facilities also include camping, boating, hunting, fishing, and picnicking.  

most of the park's features are handicapped accessible.

Trails Overview:

The trails in the state forest offer clear views of the neighboring farms and woodlands.  They offer different types of hiking experiences, from an eagle-view over a wide span of countryside to the quiet lowlands through low-lying areas.  

• Mountain Lake Trail is the only trail open to biking, The 3.7-mile trail loops around a far-off section of the park.

• There are five hiking-only trails. A 1.4-mile circle hike which leads to the two best viewpoints that combine the Spring and Summit trails. There are longer loop-hikes that are also possible.

• The Blue Trail carries down the length of this relatively narrow park from the Park Office southwest towards Mountain Lake.

Must Know Before You Visit Jenny Jump State Forest

Contact : (908) 459-4366

Entry Fee : Free

Pets Friendly : No

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