Elk, deer, antelopes, wolves and bears are just a few of the 500 species of wildlife that can be seen in Montana. The National Bison Range , just north of Missoula , was established in 1908 to protect the animal from extinction. Today, around 500 bison roam this high plains refuge. Between May and October, when all the routes are open, there is a small per-vehicle charge to access the range and view the magnificent creatures. Waterton-Glacier Peace Park is home to many endangered bears, big horn sheep, mountain goats, moose and the grey wolf.
Highway crosses the park's spectacular alpine landscape and is one of America's most scenic drives.
Hiking is a popular option, with over 750 miles of trails to follow, many offering back-country camping opportunities. There are also special routes for cyclists and horses, and many of the larger lakes have tour boat services. Anyone who enters the park is advised to take very seriously the park rangers' warnings and advice about encounters with bears. Other recreation areas include the Bob Marshall Wilderness Area , the huge Charles M Russell National Wildlife Refuge and Yellowstone National Park , which is shared with Wyoming. Billings is Montana's largest city with nearly 100,000 residents.