Bradly J. Boner | Photography

Old Faithful visitor complex, Yellowstone National Park

Hundreds of tourists gather to watch an eruption of Old Faithful at the Upper Geyser Basin in early August in Yellowstone National Park. As the National Park Service celebrates its centennial August 25, Yellowstone, Grand Teton and other national parks around the country are experiencing record visitation that threathens the very resources that inspired the parks' creation.

Add to Lightbox Download

Filename: 20160809-yellowstone-aerial-211.JPG
Image Size: 3971x2609 / 8.8MB; www.bradlyjboner.com; old faithful upper geyser basin yellowstone national park tourists tourism visitation geyser thermal aerial
Contained in galleries

Hundreds of tourists gather to watch an eruption of Old Faithful at the Upper Geyser Basin in early August in Yellowstone National Park. As the National Park Service celebrates its centennial August 25, Yellowstone, Grand Teton and other national parks around the country are experiencing record visitation that threathens the very resources that inspired the parks' creation.