Grand Teton & Yellowstone: Canyon, Geysers & Lamar Valley
Three days that use Jackson's position between two of the world's most spectacular national parks — Grand Teton immediately north, Yellowstone 2 hours north through the park. The Cascade Canyon circuit on day one establishes the Teton scale. Yellowstone's Old Faithful and Grand Prismatic Spring on day two are the park's most iconic thermal features: Old Faithful erupts to 100-180 feet on an average 91-minute interval; Grand Prismatic is 370 feet across and 121 feet deep, the largest hot spring in the United States and the third largest in the world, its rainbow of microbial mats visible from the spring-side boardwalk. Lamar Valley on day three is Yellowstone's wildlife corridor — the Serengeti of North America, with the highest concentration of large mammals in the lower 48 states: bison herds of hundreds, gray wolf packs (visible from the road with spotting scopes), grizzly bear, elk, pronghorn, and coyote.