There are no entrance fees for visiting Hopewell Furnace National Historic Site.
Fees are collected for special uses which require a park issued permit. More information regarding what uses require a permit may be found in the "Permits and Reservations" section of this website.
Apple Picking Fees:
No entrance fee is charged for those entering the park to pick apples during the apple sales season (September - October). A fee is charged for the amount of apples picked based on the market value of the fruit.
Passes:
National Parks and Federal Recreational Lands passes (sold or issued) are not available at this site.