Ever fall asleep in Geology 101? Well, it wasn't the subject. You have to experience it actively! These places—from the Tetons' dramatic granite landscapes to Yellowstone's spectacular geysers—will change everything for you. Delve into these epic parks with wranglers, guides and locals. They'll fill you in on what you missed in class.
1-2 Welcome to Grand Teton National Park, where shimmering lakes and imposing peaks await | Float on the Snake River amid pine-blanketed banks and distant granite mountains | Keep an eye out for wildlife grazing along the banks and bald eagles soaring overhead | Boat across Jenny Lake, set in a glacially carved valley | Walk along treelined trails to Hidden Falls | Relax at the Jackson Lake Lodge, whose massive picture windows frame the Tetons' dramatic spires.
3 Saddle up with local wranglers for a horseback ride through meadows speckled with wildflowers | Old Faithful, Yellowstone National Park's most renowned feature, provides the quintessential introduction to the region's natural treasures | The geyser's dazzling eruptions can last as long as five minutes and shoot up thousands of gallons of boiling water into the air!
4-6 Marvel at the bubbling thermal features of the Upper Geyser Basin, Morning Glory Pool and Grotto Geyser | With a little luck, see Giant Geyser put on a show! | Give your camera a workout on a wildlife safari through the Lamar Valley | In vehicles and on foot, explore Yellowstone's northern reaches in search of antelope, bison, coyotes, elk and wolves | Experience this wilderness through the eyes of a seasoned naturalist | Visit Fort Yellowstone, a relic of the area's human history | Witness the snow-white travertine terraces of Mammoth Hot Springs.