The Klondike Gold Rush brought prospectors to Canada's Yukon. There is much to see in the gorgeous and wild space, both natural beauty and remnants of that most famous gold rush. This clip starts with the Chilkoot Trail over which prospectors traveled to Dawson City and the gold.
From 1990 to 1996, Jim and Jamie Dutcher (http://photography.nationalgeographic...) lived in a tented camp on the edge of Idaho's Sawtooth Wilderness, where they observed and studied the behavior and social hierarchy among a pack of gray wolves, known as the Sawtooth Pack.
In West Yellowstone, Montana, sled dog mushers of all ages gather to compete in the Rodeo Run, a two-day race. These sled dogs aren't just the typical Siberian husky—some have been crossed with other breeds to go farther and faster.