7 Awesome Facts About National Parks

Celebrate over 100 years of National Park Service with these quick facts.

  1. At 405 miles, Mammoth Cave National Park in Kentucky is the longest known cave system in the world.
  2. There are 59 national parks in the U.S.
  3. Woodrow Wilson, the 28th president, signed the National Park Service Organic Act on Aug. 25, 1916, making the National Park Service a part of the federal government.
  4. The smallest national park is Thaddeus Kosciuszko National Memorial in Pennsylvania at .02 acres.
  5. Before there was an official National Park Service, Ulysses S. Grant signed off on what would become the first national park, Yellowstone, in 1872.
  6. The National Parks cover more than 84 million acres.
  7. The National Park Service employs 22,000 people and has 221,000 volunteers.