The National Park Service turns 99 years old on August 25. To celebrate, all of the country's national parks are waiving their entrance fees and inviting everyone to join in the festivities taking place coast-to-coast.
On August 25, 1916, President Woodrow Wilson created the National Park Service to formally protect and preserve these lands so people all over the world could experience America's historic beauty and heritage for years to come.
Today, the National Park Service manages over 400 national parks and memorials, which supported more than 238,000 jobs and pumped more than $26 billion into local economies last year.
Information provided by the American Hiking Society