Welcome to fly fishing yellowstone national park this website provides you with all the information you need for fly fishing the many trout streams in this great national park a lifetime would not allow a person enough time to fish all of the water of yellowstone national park it is that huge over 22 million acres there are over 2600 miles of streams the park offers the most water in . The fly fishing in yellowstone combines a wild setting spectacular scenery and great angling opportunities many of the worlds most famous trout streams such as the yellowstone gallatin madison and snake are born inside of the park fly fishing inside of the park is exclusively walk and wade only by regulation. If you plan on doing fly fishing in yellowstone national park you will need to purchase a fishing permit this permit is required for anyone 16 years of age and older they are available as a season permit for us40 a seven day permit for 25 or a three day permit for 18. Dubbed the strangest trout stream on earth the firehole river is one of the parks fly fish only streams this spring fed river gets its name from its course through the most active geyser basins in yellowstone park anglers are often fishing in a blanket of steam rising from gurgling hot springs