You can find good spots for fly fishing in most states, but some are more epic than others. Allow me to introduce you to heaven on earth for anglers.
Montana is an incredibly beautiful state. It is located on the Canadian border between Wyoming and the Dakotas. It is the fourth largest state with over 145,000 square miles. The central and eastern sections of the state are plains, while the west contains the northern Rocky Mountains. Major rivers include the Yellowstone, Madison, Missouri and Flathead. Montana also has the shortest river in the world, the Roe, which is 201 feet long. Just a bit of trivia for you to throw around on your trip!
The Yellowstone is a tributary of the Missouri River. It is an excellent fly fishing river. The longest undimmed river in the continental United States, the Yellowstone drains the Rocky Mountains in the park of the same name. The river offers excellent trout fishing up and down practically every area. Cutthroat and brown trout are plentiful and active. Rainbows are less so, but still common. The Yellowstone is mostly a no-kill river, so don