Yep, the Madison is well known but it can be very tough at times since everyone wants to fish it. Since it is so easily accessible and so close to W. Yellowstone it tends to be filled with tourist and educated trout.
Though when you get it all to yourself because everybody is on the Firehole and the fish are rising to some PMDs, it can be great. Especially if you forget the sketchy river crossing and the fried camera.
