Yellowstone National Park
P.O. Box 168
Yellowstone National Park, WY 82190-0168

Phone: 307-344-7381

Old Faithful and some 10,000 other thermal features make this the Earth's greatest geyser area. Here, too, are lakes, waterfalls, high mountain meadows, wildlife, and the Grand Canyon of the Yellowstone--all set apart in 1872 as the world's first national park.