Sourland Mountain Preserve

Sourland Mountain Preserve

Boulders at Devil's Half Acre - Sourland Mountain Preserve - Photo credit: Daniela Wagstaff Boulders at Devil's Half Acre - Sourland Mountain Preserve - Photo credit: Daniela Wagstaff
40.4739, -74.694402

The largest of the open spaces on Sourland Mountain, with easy to moderate trails.

Sourland Mountain Preserve

The largest of the open spaces on Sourland Mountain is the 4,000-acre Sourland Mountain Preserve, a Somerset County park.  It occupies a portion of the northeast "point" of the Sourland Region, which stretches southwest across Hillsborough and Montgomery Townships through southern Hunterdon and northern Mercer counties to the Delaware River.


Park Acreage:

4000.00 acres


Hillsborough & Montgomery Townships

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Contact Information

Web Link:

Somerset County Park Commission


(908) 722-1200



Dogs in park:

Dogs on leash

Prepare For Your Destination

Web Map: Trail Map

Let's Go

Trip Reports

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August 19, 2012
Sourland Hike Rally Sept. 8
Somerset County Parks System has given permission to the Sourland Planning Council to hold a hikers rally  in the park on September 8th as a fundraiser.  There will be eight different guided hikes that Saturday morning, led by some well-known area naturalists / open space advocates, including nature photographer Clem Fiori and Stony Brook Watershed's chief env. educator Jeff Hoagland.  Brick over pizza and ice cream are included and served in park after and a t-shirt too!  Also, a road cycling rally at own pace of up to 60 miles will also be set to go.  Should be fun and raise consciousness of this Central NJ jewel.  More info at .
June 01, 2010
sourland hike
did the loop on Memorial Day (hot humid) - an interesting trail but not among my top-ten in the state. The Devil's Half Acre is cool and worth the trek. Did not find Rolling Rocks all that exciting -but perhaps after a major rain storm or winter thaw.... and as noted before - From #6 you can take the Red Square to the Rocks -then continue up to #8.
September 10, 2009
New trails have been blazed with red blazes
Two new trails are now blazed with red blazes. The Ridge Trail [white square blazes] connects to the newly blazed Red Blaze trail which runs to Roaring Brook and the re-connects with the Ridge Trail below the brook. The Red Circular blazed trail runs north from the brook and terminates at the gas line.
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