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National Historical Park · DE, PA

First State National Historical Park

Open

No closure notices posted by NPS.

Last checked Oct 24, 2026, 9:57 PM ET

Official NPS page →
Park Lookout is an independent site, not the National Park Service. We are not affiliated with NPS. Confirm conditions on nps.gov before you go: official First State National Historical Park page.

Current NPS alerts (1)

Caution

Safety Alert Hazardous Trees in the Brandywine Valley

Numerous trees in the Brandywine Valley are down across the roads and trails due to the recent storm. Please use caution while driving and hiking never walk directly under a tree that is hanging. Park staff is working to improve conditions.

Last updated by NPS: Sep 2, 2026

Weather alerts (National Weather Service)

Minor · NWS Mount Holly NJ

Frost Advisory

Frost Advisory issued October 24 at 4:43PM EDT until October 25 at 9:00AM EDT by NWS Mount Holly NJ

From Oct 24, 4:43 PM ET until Oct 25, 9:00 AM ET · Area: New Castle; Kent; Kent; Queen Anne's; Caroline; Delaware; Philadelphia; Eastern Chester; Eastern Montgomery; Lower Bucks

About this site

Famous as the First State to ratify the Constitution, Delaware was born out of a conflict among three world powers for dominance of the Delaware Valley. From this beginning, the region developed a distinct character that tolerated diversity in religion and national origin and valued independence.

Type
National Historical Park
States
Delaware, Pennsylvania
Address
First State National Historical Park, 10 Market Street, New Castle, DE 19720

From the NPS Data API. Official NPS page →