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Princeton Nature Reserves

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Barton Arboretum and Nature Preserve


The Barton Arboretum and Nature Preserve of Medford Leas is a unique blend of accessible public gardens, collections, and preserved natural areas set amidst private residential space. With campuses in Medford and Lumberton, NJ, spanning more than 200 acres, the Arboretum offers visitors a diverse horticultural array of designed gardens, landscaped grounds, meadows, natural woodlands and wetlands, and one of the most extensive plant collections — including natives — in all of southern New Jersey.

     Garden Tours     Nature Reserves  

Bowman's Hill Wildflower Preserve


Bowman's Hill Wildflower Preserve is a 134 acre nature preserve, botanical garden, and accredited museum located at 1635 River Road, New Hope, Pennsylvania. It is open daily, except for major holidays, April–June, and closed on Mondays July–March; an admission fee is charged to nonmembers.

Bucks County Audubon Society at Honey Hollow


The Bucks County Audubon Society at Honey Hollow (BCAS) is a private, non-profit organization founded as a chapter of the National Audubon Society in 1969. Since its inception, BCAS has been dedicated to conserving wildlife, promoting awareness of environmental problems, watching birds, educating the community about the interdependence of humans and their world, and furthering the wise use of land, air, and water.

Cedar Ridge Preserve

This property is a combination of meadow, forest and streams covering approximately 30 acres at the edge of the Sourland Mountains. The Cedar Ridge Trail is a preservation project of D&R Greenway Land Trust. The land includes a stream corridor to the Stony Brook, wetlands, woodlands and habitat for wildlife.

     Hiking Trails     Nature Reserves  

Fiddler’s Creek Preserve

This 121-acre complement to the larger Baldpate Preserve offers broad views of the Baldpate Mountain Ridge, stunning views down into the Fiddler’s Creek ravine, idyllic walking along the creek at the bottom of the ravine, and links to the industrial past of the Hopewell Valley a century and more old. The terrain falls in three categories: (1) scrub woods and open areas along the western side of the property; (2) a central 40-acre area of open fields (undergoing reforestation) extending northeast from those scrub woods to Fiddler’s Creek Road; and (3) the Fiddler’s Creek Ravine on the east side of the preserve, running from Fiddler’s Creek Road roughly south towards the Delaware River. The open field area is surrounded by a fence to protect young trees from deer, and is crossed by four trail segments, with gates at five points to let walkers through

     Nature Reserves  

Herrontown Woods

Herrontown Woods, lying across the eastern end of the Princeton Ridge, offers more than three miles of trails through pleasant woods. An open right-of-way for the underground Transco Gas Pipeline bisects the property southwest to northeast, crossing several of the trails, and offering longer views. Intermittent streams come down from the ridge to join a creek near the parking lot. The 142-acre property is owned by Mercer County and managed by the County Park Commission.

     Hiking Trails     Nature Reserves  

Mountain Lakes Nature Preserve

West of Route 206/North of Mountain Avenue Princeton NJ 08540


Mountain Lakes Nature Preserve is home to many species of trees, wildflowers, birds, amphibians and mammals. The best way to tour the preserve is to walk along the unpaved trail that loops the lakes.

Plainsboro Preserve - New Jersey Audubon Society


Explore Plainsboro Preserve’s 1,000 acres of woods, meadows and McCormack Lake shoreline on five miles of trails. Check out more than 150 species of birds. Plants include a diverse showing of spring wildflowers and a number of endangered species. At the Plainsboro Preserve Environmental Education Center, you can check out educational programs, visit the gift shop or enter the “under the pond” room.

HOURS: Tuesday to Saturday, 9:00 A.M. to 4:00 P.M. / Sunday, 12:00PM to 4:00 P.M. / Closed on Mondays TRAILS: Open dawn to dusk daily. CLOSINGS: December 24th, 25th, and January 1st

Sourland Mountain Preserve - Somerset

Sourland Mountain Preserve in Somerset County is 3,025 acres of woodlands, boulder fields, unique wetlands, and steep hillsides.Passive recreational opportunities include hiking, mountain biking, bird watching, orienteering, bird watching, and bouldering. The trails described here are located on the northern most border of Montgomery Township in Hillsborough Township. Sourland Mountain Preserve is part of the Sourland Mountains, a 90 square mile area extending over five townships (Montgomery, Hillsborough, Hopewell, West Amwell and East Amwell) and three counties (Mercer, Somerset and Hunterdon) in central New Jersey. The Sourlands consist of the main Sourland Ridge with an elevation ranging from 300 – 600 feet and several geologically similar adjoining areas, including Baldpate Mountain, Mount Rose and Pheasant Hill.

     Biking Trails     Hiking Trails     Nature Reserves  

St. Michaels Farm Preserve

Now over 400 acres, the St. Michaels property, which was preserved in 2010 and expanded in 2017, is an expanse of farm fields and forests on the edge of Hopewell Borough. From many parts of this preserve the visitor has long views, lending the preserve a wonderful expansiveness which promotes a sense of well-being in anyone who walks its many farm roads and paths.

     Hiking Trails     Nature Reserves  

The Pinelands National Reserve


Featuring 1.1-million acres of dense forests, serene rivers, picturesque parks, rare plants and animals, miles of blueberry fields and cranberry bogs and a rich heritage dating from prehistoric times, the New Jersey Pinelands is a prime recreational destination.

Day-trippers can partake in a wide-range of activities, depending on the season. However, visitors are encouraged to spend several days to gain a full-appreciation of the region and its vast natural, cultural and historic resources.

     Nature Reserves  

The Watershed Institute


Hours: Dawn to dusk
The 860-acre Watershed Reserve in Hopewell NJ offers outdoor experiences for the entire family. Visitors can enjoy the animals and exhibits of the Buttinger Nature Center, the butterflies and garden habitats of the Kate Gorrie Butterfly House (in season), and more more than 10 miles of hiking trails. The Reserve is owned and managed by The Watershed Institute - central New Jersey's first environmental group. The Watershed Institute protects clean water and the environment throughout the 265-square-mile region of central New Jersey drained by the Stony Brook and Millstone River. For directions or to learn more visit

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