Sourland Mountain Hiking Trails

The hiking trails in Sourland Mountain Preserve are the local favorites near the Princeton area. People come here hiking, running, biking, and bouldering. We went there many times and finally found the longest loop (over 7 miles) this time. The trails are mostly flat, wandering through big boulders, little streams, and thick woods. Note: Some areas may get pretty wet and muddy.

Parking: 415 E Mountain Rd, Hillsborough Township, NJ 08844

Note: Sometimes google may direct to a different place if you search for "Sourland Mountain Preserve".

The longest loop on the above map starts from Post Mark (1). We followed the yellow trails to Post Mark (2; Devil's Half Acre Boulders) and (3), and then the red trail to Post Mark (4; Roaring Rocks Boulders), the blue trail to Post Mark (5), the white trail to Post Marks (7) and (8). The orange trail closes the loop.

Note: The drawback of this loop is that you will miss the spot (with a camera symbol) where you can see the NYC skyline on a clear day.