Paddlers have a wealth of choices here. Montana is particularly rich in rivers worth floating: the Flathead, the Blackfoot, the Madison, the Clarks Fork near Missoula, the Dearborn, the Yellowstone, and even the big old Missouri. In Wyoming there is less variety, but you'll find some fine stretches of river on the Snake, the Platte, the Hoback, and Clarks Fork through Sunlight Basin. If you choose white-water rafting, leave the driving to someone else (that is, sign up with an outfitter that will provide an experienced person to pilot your craft), though you may be asked to paddle. The smaller rivers have no dams to regulate flows, which means kayakers seeking fast, scary runs should come during runoff in June, while canoeists wanting to relax and bird-watch can easily handle the upper Snake or Flathead late in the summer. For thrills, try the Yellowstone River at Gardiner, Montana, and the Snake River in Wyoming.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.