National Park Service Founders Day is observed every year on August 25. The day honors the creation of the National Park Service and the people who helped build a national system focused on protecting natural landscapes, historic places, and cultural landmarks. Today, the agency manages not only national parks, but also monuments, seashores, battlefields, recreation areas, historic sites, and many other protected places across the United States.
History of National Park Service Founders Day
Before the National Park Service existed, national parks and monuments were managed separately under the Department of the Interior. Support grew for a single agency that could oversee these places more effectively and protect them under a common mission.
Stephen Mather became one of the key figures behind that effort. He worked with supporters including J. Horace McFarland and Robert Sterling Yard to build public and political backing for a new federal service devoted to preservation. Their campaign helped lead to the Organic Act, which President Woodrow Wilson signed into law on August 25, 1916.
That date became the basis for National Park Service Founders Day. It marks the beginning of a federal agency created to preserve important natural and historic places for future generations.
Interesting Facts About National Park Service Founders Day
The holiday is also a good opportunity to look at how broad the National Park Service mission has become over time.
- The National Park Service protects far more than the 63 sites officially called national parks.
- Its responsibilities also include historic sites, monuments, seashores, recreation areas, military parks, and battlefields.
- The agency has developed accessible trails, visitor services, and educational programs to make many sites easier to explore.
- Some park trails are highly demanding, while others are designed for a wider range of visitors, including people with disabilities.
Together, these responsibilities show that the National Park Service is not only about scenery, but also about history, access, and long-term stewardship.
How National Park Service Founders Day Is Observed
There are several meaningful ways to mark National Park Service Founders Day, whether you are visiting in person or learning from home.
- Visit a national park or another protected site managed by the National Park Service.
- Check the official park website before your trip to review trail difficulty, accessibility, and safety information.
- Thank or recognize someone who works for the National Park Service if you know one.
- Consider volunteering or supporting conservation work connected with parks and historic sites.
- Share the day online using the hashtag #NPSFoundersDay.
Even a short visit or a small act of support can help draw attention to the work of protecting these places.
When Is National Park Service Founders Day in 2026?
National Park Service Founders Day is observed on August 25 each year.
Observations
| Weekday | Month | Day | Year |
| Tuesday | August | 25 | 2026 |
| Wednesday | August | 25 | 2027 |
| Friday | August | 25 | 2028 |
| Saturday | August | 25 | 2029 |


