The U.S. National Park Service celebrates its 100th anniversary in 2016. In honor of the centennial, we are sharing 100 facts, from the basic to the bizarre, to inspire you to join in the celebration at one of the many beautiful national parks across the country.
One of the best parts about visiting a national park is the chance to commune with nature. Discover some of the interesting natural features and phenomena at several of our national parks with these 12 facts:
1) Fireflies at Elkmont Campground in Great Smoky Mountains National Park flash in unison for two weeks each summer.