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Tourne County Park

linkTrail Guide

McCaffrey Lane & Old Boonton Road
Denville, NJ 07834

T: (973) 326 - 7600

M-F: Daily, sunrise to sunset.
Sat-Sun: Daily, sunrise to sunset.



An ecological and recreational oasis for all ages with views of the New York skyline in the heart of Morris County!

The Tourne offers over 550 acres, with 12 miles of trails that lead you to forests, wetlands, streams, wildflowers, animal habitats, and to heights with panoramic views. You can hike, bike, ride your horse, or access to the Rockaway River for canoeing, kayaking, and fishing. In the winter, it’s great for snowshoeing, cross-country skiing, and sledding. Challenge yourself with a climb to the top of the Tourne for great views of the New York skyline or explore glacial deposits at massive Denture Rock and Mouse Cradle Rock.

Plan Your Visit

There are non-reservable picnic sites, reservable picnic sites and a reservable shelter that include tables, benches, and grills located throughout the park for your enjoyment. Plan a fun picnic for family and friends or your next corporate event.

Clubs, organizations, businesses and groups of 25 or more persons utilizing any Morris County Park area are required to make a reservation and obtain a permit.

Bring your fishing rods, canoes, or kayaks and visit the Rockaway River Access area or stay on dry land for a pickup game of wiffleball on the recreational softball field.

With over 10 miles of trails available this park offers a diverse mix of trail options. Climb to the top of the Tourne, with a max elevation of 897 feet, to enjoy a panoramic view of the New York City skyline or stroll down the Emily K. Hammond Wildflower Trail with 250 species of native plants and wildflowers. Click here for trail resources and information on trail courtesy and safety.


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Programs & Activities
  • Biking
  • Canoeing/Kayaking
  • Hiking
  • Fishing
  • Picnic Sites
  • Playground
  • Softball Field
  • Sledding
  • Snowshoeing
  • Cross Country Skiing

The Park Commission acquired its first parcel of land on July 24, 1958 and opened the park for public enjoyment in 1960. The name ‘Tourne’ is derived from the Dutch word meaning ‘lookout’ or ‘mountain.’ The Tourne is the only remaining undeveloped fragment of the Great Boonton Tract. It was originally surveyed by John Chapman in May 1715. It is likely that the early surveying crew had cut bridle paths over the narrow footways made by earliest inhabitants of the nearby plantation, and current trails may follow those made more than 300 years ago by Native Americans.

The land was purchased by David Ogden, Colonial Attorney-General of New Jersey in 1759. McCaffrey Lane, the main entrance to the park, was designed in 1767 by Samuel Ogden. It was used to haul iron ore from Hibernia’s mines to Samuel Ogden’s iron works in Old Boonton. Within this historic region, cannonballs were manufactured for use by the Continental Army during the American Revolution.

During his lifetime, Clarence Addington DeCamp (1859-1948) inherited and acquired much of the land now known as Tourne County Park. Using hand tools and levers, DeCamp built two roads to the top of the Tourne and encouraged people to enjoy the forests and fields. He became one of the first conservationists in Morris County.

One of the many interesting features of the landscape is the Mouse Cradle Balancing Rock. It is a glacial erratic, which rests on the southwestern summit of the Tourne and is balanced on two points of a ledge rock and a hidden wedge stone. This imposing 54-ton boulder was named by DeCamp in 1897, when he discovered a mouse nest in a cleft of the rock. He adjusted the boulder with jack screws so the rock could be tilted a few inches with a lever when a hidden wedge was removed.