• The Madison (MT): Brown trout aren't native to this area, but no one's asking them to leave; on this popular river running from Yellowstone National Park into Montana, they're the big attraction. The Madison converges with its "holy trinity" counterparts, the Jefferson and Gallatin, near Three Forks, but lots of anglers fish it around Yellowstone.

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.