Gear

Three to seven weight rods, reels & lines are a nice mix. If you are flying and are limited, then a 5 & 6 weight will do nicely. Also, there will be lots of rods at camp and you might be able to borrow one if you’d like to try a different weight.
Plenty of tippet in the 2x-7x range. 4x-6x is adequate.
Waders - Some of the waters are relatively warm and some are cold. Waders are recommended, but be prepared to wet wade as well.
Wading boots - NO FELT in Yellowstone. Felt soled boots with spikes are OK everywhere else.
Wading staff
Split shot - NO LEAD in Yellowstone, so you may as well make it no lead everywhere.
Polarized sun glasses if you have them.

Technique

The water ranges from fast and narrow to meandering and slow and there are deep holes in both. Drifts tend to be short, so the flies need to get down fast and stay down.
Nymphing will likely be your most productive method. You will probably need some extra weight to get the fly down.
However, streamers and dry flies will also be productive in some areas. The Clark’s Fork of the Yellowstone River is a dry fly paradise.
Be patient and don’t be shy about asking for help. Other campers and staff will be glad to lend a hand.

Use the Buddy System

Don’t fish alone. You might be tempted, but don’t do it. You may fall. You may encounter bear, moose, or bison. You may need help. Plan for it, be safe and have fun.

We have a pond

Right in camp and it is stocked with cutthroat trout. Just a short walk from your home away from home. On the map, on page 10, in the upper left corner there is a blue body of water close to the Shoshone River. It is called Aquatics on the map because the Boy Scouts use it for kayak training. We fish for cutthroat.

You are welcome to fish the pond anytime you want. We would still recommend going with a buddy. In 2021, there was a cow moose that waded the pond almost every evening. We named her Eleanor and we kept our distance. She pretended to ignore us and we got along just fine.