The original du Pont black powder works on the Brandywine, plus the family's first house and gardens, spread over a couple of hundred acres. Most people spend two to three hours. It's outdoors as much as in, on gravel and uneven ground.

Eleutherian Mills, the du Pont family house on the Hagley site, with a tour group on the lawn. Public domain, from a U.S. Department of Transportation photograph.
date not given · Public domain · source
- The powder yard is closed 24 August to 4 September 2026. Everything else stays open and general admission is half price for those two weeks.
- Closed Wednesdays to general visitors.
- Last admission is 4pm for a site that takes two to three hours.
What's inside
- Nation of Inventors, about 30 to 40 minutes
- The Powder Yard along the Brandywine, 40 to 60 minutes
- Eleutherian Mills, the du Pont residence, about 45 minutes to an hour
- The gardens
- A museum store and a cafe by the Visitor Center
The details
- Admission
- Adults $22. Students, seniors 62+, veterans and military retirees $18. Ages 6 to 14 $12. Free for under-6s, active military and their families, and members.
- Restrooms
- Not confirmed
- Gift shop
- Yes
- Getting around
- A wheelchair-accessible shuttle runs between the main areas. The grounds themselves are uneven with gravel paths, and Hagley says to wear proper shoes.
- Parking
- Free parking by the Visitor Center. You can't drive into the rest of the site.
Where it is
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