National Parks Offer Free Entry to Commemorate Constitution Day
National parks are offering free entry to mark Constitution Day.

Spokane, WA, September 17, 2026 —
Several national parks across the United States are providing complimentary admission for visitors to commemorate Constitution Day. This initiative allows the public to access national park lands without the usual entrance fees.
Constitution Day, observed annually on September 17th, honors the anniversary of the signing of the U.S. Constitution in 1787. The National Park Service frequently participates in events and observances that highlight American history and civic traditions. This year’s free entry period offers an opportunity for individuals and families to explore the nation’s natural and historical treasures.
The specific dates and times for the free entry may vary by park. It is advisable for prospective visitors to check the official website of their intended national park or the National Park Service for the most current information regarding fee-free days and any associated operational details. No specific list of participating parks was provided in the trend summary.
This period of free access is intended to encourage greater public engagement with the national park system, promoting education and appreciation for the country’s heritage. The exact duration of the free entry offer beyond Constitution Day itself was not specified.
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