There are four areas in the northern loop of Yellowstone: • Mammoth Hot Springs • Tower-Roosevelt • Lamar Valley • Canyon • Norris
The warm, subterranean water here has created large areas of beautiful terraces.
From Mammoth to Roosevelt you pass by Undine Falls, Wraith Falls, Blacktail Plateau Drive, and the Petrified Tree.
Bison are most common here, and many hundreds may often be seen, sometimes walking right next to or along the road. But if you’re lucky, you’ll see wolves and grizzly bears.