The Hollow Brook Preserve is located on the south side of Route 512 (Fairmont Road East) about one mile east of Old Turnpike Road (County Road 517). Parking is available at a crushed-stone pull off along the westernmost of the two power line easements crossing the property. The preserve has no maintained trails, but visitors may be interested in the scenic views of an old stone bridge crossing the brook.

The stone bridge is structurally unsound and should be avoided at this time.

Plan Your Visit

Basic Information

Physical Address: 40.634231, -74.686549 

Operating Hours and Seasons: Open Dawn till Dusk.

Fees: Raritan Headwaters does not charge a fee to visit our properties. But maintaining and improving nature preserves is expensive, so we welcome donations to help defray our stewardship costs. Thank you for helping our preserves!


Learn About Hollow Brook Preserve 

This 21-acre site consists of forested wetlands with many springs, and the headwaters of the Hollow Brook flow through it. The property was donated to the Upper Raritan Watershed Association (now RHA) by George Wetteland and Solid Wood Construction LLC in 1999. 

The remains of an old stone bridge cross the brook, making for a picturesque setting within the preserve, but visitors must be cautious and refrain from attempting to access the bridge remnants. There are no formally maintained trails on this property. 


Stewardship at this property includes invasive plant surveying and removal, trail creation and trash removal.  Annual surveys are also performed.  The stone bridge repairs are anticipated for the near future. 

Get Involved

Ways to get involved!