WASHINGTON, D.C. - Monday, August 25 marks 109 years since President Woodrow Wilson signed the National Park Service Act.

The inland northwest is home to several national parks, listed by state below:

Washington

Mount Rainier National Park

Olympic National Park

North Cascades National Park

Idaho

Yellowstone National Park

Montana

Yellowstone National Park

Glacier National Park

The program was designed to "preserve unimpaired the natural and cultural resources and values of the National Park System for the enjoyment, education, and inspiration of this and future generations," according to the National Park Service (NPS) website.

NPS is an agency within the U.S. Department of the Interior.

To learn more about the National Park System, visit their website.

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