Department of Environmental Protection

New Jersey State Park Service

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Prallsville Mills Overview

Just north of Lambertville and alongside the Delaware River, sits the small river town of Stockton and the Prallsville Mill site. The historic 10-building mill complex is located along the D&R Canal's feeder and the former Bel-Del rail line. The site includes a grist mill, linseed oil mill, saw mill and granary, most dating back to the late 1700s. The buildings are considered a significant example of early American industrial architecture. The complex also includes one of the finest 18th century houses in the region – The Prall House – and is among New Jersey's most significant early dwellings. This wonderful stone structure is a late Georgian/early Federal residence that John Prall built for his family. The site is leased and operated by the Delaware River Mill Society, which sponsors concerts and other programs on site. For further information, please call (609)397.3586. The D&R Canal Commission office is located in the restored and repurposed wagon shed at the mill complex. For more information visit the Prallsville Mills website.

Facilities for People with Disabilities
We encourage people with disabilities who require special considerations to contact the historic site / park at the phone number listed in the general information on the home page of the historic site / park. The staff will assist with arrangements. Text telephone (TT) users, please call the NJ Relay Services at (800) 852-7899.

For the Comfort and Enjoyment of All
This historic site / park is part of the NJ State Park system and your cooperation with the following will help ensure the survival of the museum collections, historic structures & features and surrounding property for the enjoyment and education of future generations!

  • Keep your historic site / park and surrounding property clean and green! Protect this site by taking your trash with you. Whatever you carry into the site, plan on carrying it out too. Bring a bag or two for trash, recycling and cleaning up after your pet. There are no trash receptacles at this site. Thank you!
  • No Smoking on NJ State Park Service Property. Pursuant to N.J.P.L.2005, c.383 (C.26:3D-56)
  • Alcoholic beverages are not permitted at state historic sites [ N.J.A.C. 7:2-2.6]
  • The collection or removal of any object from State Park property is prohibited without written permission from the Superintendent.
  • Use of metal detecting devices on or unmanned aerial vehicles (drones) on or over the property is not permitted without a special use permit (SUP) from the State historic site / park.
  • Commercial photography is not permitted on the property without a special use permit (SUP) from the historic site / park.
  • Interior photography, videotaping or audio taping are not permitted in the historic structure / visitor center / museum, except by prior written permission and for educational purposes only.
  • Non-commercial photography is permitted on the property (outside), but please help preserve the historic site / park and any surrounding property by not attaching anything to, climbing or sitting on historic structures and features or disturbing any plants, wild or cultivated. Photography may not interfere with other visitors to the historic site / park or impede site operations.
  • Food and beverages; pets/animals, except for service animals, are not permitted in the historic structure / visitor center / museum.
  • Please refrain from touching objects/furnishings in and building components of historic structures and museums, except where invited to do so by staff.

Please contact this historic site / park with specific inquiries about any of these restrictions, as there may be some variations at this specific historic site / park.

Related Links

Delaware & Raritan Canal State Park


Phone Number

The Delaware River Mill Society
33 Risler Street
Stockton 08559

Email Prallsville Mills

Historic Site Hours

Grounds Hours Sunrise to Sunset
Tour Hours Check Prallsville Mills website

Park Fees

Entrance Fee None

Other Related Fees
Map / Directions