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.
National Parks and Federal Recreational Lands passes (sold or issued) are not available at this site.