Frequently Asked Questions - Valley Forge National Historical Park (U.S. National Park Service) When is the park open? The park grounds are open daily, year-round, from 7 am to dusk. For information on closures and the hours of different sites at the park, click here. Did you know that pets must be leashed? Or that rollerblades, metal detectors, alcohol, and model rockets are forbidden? Click here to view the park rules and regulations. What is the weather like?
rollerblades, metal detectors, alcohol, and model rockets are forbidden?
rollerblades, metal detectors, alcohol, and model rockets are forbidden?