That time of year........have a good supply of golden stones, salmon flies and yellow sallies. I think the madison is over rated and crowded but if you fish it they will be looking for stones. Fished there a bunch and guided in Montana for several years. The slide area can be good but depends on water flow. In that area be ready with sj worms and small stuff(18-20) nymphs......yes even in June. Hebgen and Quake can be great, but you can spend days chasing fish. dont get sucked in. IMO the gallatin and other smaller rviers in the area will be the place to be. Good Luck!
