The Gallatin River in the park is a wonderful stretch of water, meandering through a beautful river valley. The water here is relatively small, but has top quality holding water for big trout. This stretch fishes well throughout the entire season, but the angler should take note that it runs on the colder side of things and often the dry fly fishing doesn't pick up until later in the day. Streamers, nymphs, and dry flies are all tools of the trade on this stretch, if you like to fish a variety of water, then a wade up the banks of the Gallatin will put you where you want to be.

     The Gardiner River is a classic pocket water type trout stream. It is loaded with fish from 10-14" and makes for a great day of fishing most days of the season. Larger fish can be found here, especially near the confluence with the Yellowstone. This water offers a great variety of water for the nymph and dry fly fisherman.

     The Lamar River is a trout fisherman's dream. Lamar Valley is one of the prettiest places around and the river is just loaded with Yellowstone Cutthroat from 12-17". The Lamar generally comes into shape around the middle of July, when the snow in the mountains is almost completely melted. It is a great river to fish, though care should be taken when heading out here as it muddies up almost instantly with any amount of rainfall. It is also a good place to catch a glimpse of a wolf or two.Lamar Canyon is a different sort of stretch, holding cutthroat, rainbows, and cuttbows in both small and large sizes. The canyon gets a good but quick hatch of salmonflies, green and brown drakes, and has great hopper fishing in August and September.