Yellowstone River 8950 CFS @ Corwin Springs
The Yellowstone has been clearing over the last week or so, and is fishing great, however, if you DO NOT KNOW HOW TO ROW A BOAT, I highly suggest avoiding the river for now. In the last week alone, two different watercraft have been capsized due to user error in the big water. This flow is highly challenging even for those of us that are on the river daily. That being said, just about every bug imaginable is hatching right now, and the fish are really eating. The usual suspects are all in play (caddis, PMD's, Yellow Sallies, etc), but there are also various Drakes, Golden Stones, and a variety of other bugs. The best fishing is in the valley, and this will probably be the case until the river is below 6000 in Livingston.
Gallatin River 1490 CFS @ Gallatin Gateway
The Gallatin River continues to clear, and continues to fish well. PMD's and Yellow Sallies, with caddis in the evenings. The river is getting lower, but it is still moving at a brisk pace. Be careful wading, and look for soft water.
Upper Madison River 1470 CFS @ Kirby Ranch
The Upper Madison is fishing quite well, with a variety of bugs hatching. Everything from Green Drakes to caddis will be around, and the dry fly bite has been pretty good.
Lower Madison River 2240 CFS below Ennis Dam
The Lower Madison continues to fish, there is a bit of floating grass in the water, and the recreational folks are out in full force, but the trout are seeing PMD's, Yellow Sallies, and caddis. The crayfish rig with variety of nymphs related to those bugs above will just about always produce.
Jefferson River 2600 CFS @ Twin Bridges
The Jefferson is coming around nicely this week, and things have been good to great on this river. Crayfish, PMD nymphs, and Sally nymphs will all work, with fish rising readily on cloudy days. We are looking solid on water conditions here right now, lets see if it lasts...
Missouri River 9870 CFS below Holter Dam
The Mo is consistently dropping, and the fishing has been great. PMD's are the prominent action right now, but there are some Yellow Sallies and Caddis as well. As with most of our rivers, the prime time for caddis is in the evening, look for the other two bugs to carry the day.