l The American buffalo or bison is the largest land mammal in North America. This powerful Old West symbol can weigh as much as 3,000 pounds! Buffalo once dominated the plains. A single herd had up to 4 million individuals! One of the biggest herds today, in Yellowstone, contains 1,000 head. .

2 This black-tailed deer's strong curiosity has caused her to interrupt her grazing to stare at the two human "fawns" in front of her. She's one of a herd of tame deer in Olympic National Park in Washington state.

3 Want to see the fastest land animal in North America? Visit a national park like Yellowstone where this speed demon, the American pronghorn antelope, makes its home. The pronghorn can reach a speed of up to 60 mph for short distances!

4 Here's a sight rarely seen, indeed — a bull elk only a few feet away! In the wilderness of the parks, the Rocky Mountain elk will disappear into the woods at the least sign of danger! This handsome elk or wapiti with its bashful nature deserves the nickname "Phantom of the Forest."

5 Did you know that the moose is the largest and most powerful of North America's antlered animals? A full-grown male may stand 199 feet tall at the shoulder! With its long legs, the moose wades out into deep water to escape flies and mosquitoes and to feed on succulent water plants.

A6 this group standing in front of Many Glacier Hotel in Montana's Glacier National Park isn't made up of tourists! Rocky Mountain sheep are natives of the area. If you hike the park's high mountain trails and are lucky, you might catch sight of some of them frolicking on steep, treacherous rocky terrain.

A, 7 You're being watched! These Dall sheep have taken a moment off from their frisky ledge ETC ETC