Yellowstone Fly Shop We have one simple mission “to create memorable fly fishing experiences for friends, family and clients that share the same passion for the sport.” You see, we eat, sleep and breathe it everyday, and we are so grateful to make fly-fishing a part of our everyday lives. At the end of the day, we are here to ensure that every YFS trip is enjoyable, educational and most importanly, safe. Whether you choose to take advantage of the wade fishing or floating, the combination of being on the water, taking in the scenery and enjoying the world class fishing in the Greater Yellowstone area is hard to beat.