National Park Service U.S. Department of the Interior Search Find a Park Discover History Explore Nature Get Involved Working with Communities Teachers Kids About Us Yellowstone National Park ID,MT,WY small medium large print Explore This Park Park Home Plan Your Visit Photos & Multimedia History & Culture Nature & Science For Teachers For Kids News Management Support Your Park Bookstore Park Tools View Park Map FAQs Contact Us Site Index Español Find Us On Facebook Twitter YouTube Flickr More There are park alerts in effect. HIDE ALERTS » Craig Pass Closed for the Season; Mammoth to Norris Closed Sept. 14-30 The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. The road from Mammoth to Norris is closed for two weeks—traffic should detour over Dunraven Pass. More » World's Largest Collection of Geysers It's a Wonderland. Old Faithful and the majority of the world's geysers are preserved here. They are the main reason the park was established in 1872 as America's first national park—an idea that spread worldwide. A mountain wildland, home to grizzly bears, wolves, and herds of bison and elk, the park is the core of one of the last, nearly intact, natural ecosystems in the Earth’s temperate zone. Directions Operating Hours & Seasons Fees and Reservations Park Roads & Construction Camping Webcams Non-commercial Snowmobile Program Features Be Bear Aware Safety in bear country begins before you hit the trail. Learn how you can have a safe and enjoyable visit. Read More Current Conditions Wondering what the park is like right now? The answer is a click away. Read More Join the Conversation Stay connected with us on Facebook, flickr, YouTube, and Twitter. Read More Did You Know? At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the National Park Service. Site Map Frequently Asked Questions Website Policies Contact Us YouTube iTunes Facebook Twitter Last Updated: 09/17/2014