One of the most enjoyable times of the year for fly fishers is when trout start looking for terrestrials. This means ants, beetles and hoppers. The rivers in the Twin Bridges, Dillon area are finally beginning to show signs of hopper activity.
The Big Hole will produce top water action with hoppers, big attractor dries and parachute adams. If you don't mind fishing a nymph off the back of your dry it is advisable. Stream flows are very good and water temperatures on the Big Hole remain cool. Dry flies will be particularly effective on overcast days.
The Beaverhead is very high due to irrigation demands but it is fishing quite well. If you are a streamer fisherman think about getting a very early start and fishing right at dawn. You can also fish the last part of the day when the sun has dropped behind the mountains. Nymphing on the Beav right now is exceptional. Fish micro may flies and split back nymphs in small sizes. You need lots of weight to get deep and you probably will want to float the river to be most effective.
The Madison is erratic as usual this time of year. Lots of small fish up on the dry flies. If you want larger fish you must drift nymphs and streamers under an indicator.
The Ruby is just clearing enough to be fishable below the reservoir. You may not have much success with dries but nypmhs and streamers are working fine.
The Jefferson is rounding into shape and will be one of those rivers where you want to think about fishing hoppers. If the dries are not the answer go to nymphs and streamers.
All area spring creeks and meadow streams are responding with hopper fishing.
The final suggestion we always like to offer is to think about fishing Clark Canyon Reservoir. This lake is producing some very large fish right now.