Techniques: Yellowstone is a great place to swing wet flies, fish dry flies, nymphs, or streamers at any time in the season. Technique will depend on the fishery and the time of the season. Mayfly and Caddis hatches, especially early and late in the season, offer match the hatch conditions.
Fish Species: Yellowstone Cutthroat, Rainbow, Brown Trout, Mountain Whitefish. Trout up to 24”; average size is 8-12”, with a healthy population of trout 16-18”
Best Time: Fishing season opens on the Saturday of Memorial Day weekend and typically the Firehole is the best option with great hatches. Mid to late June brings more snowmelt and Lewis Lake and a few creeks fish well. July-September is consistent for dry fly action on the major rivers and also the small creeks and lakes. October brings spawning brown trout on the Madison and Lewis Rivers. These rivers and Lewis Lake are a great option until the Park closes the first weekend of November.
Dry Flies: PMD Cripples #14-18, Parachute Adams #10-20, Yellow Stimulators #14-16, Elk Hair Caddis #14-18, X2 Caddis #14-18, Parahoppers #10-14, Parachute Hares Ears #12, Chernobyl Ants #6-12, Ants and Beetles #14-18
Nymphs: Orange, Olive, Brown Soft Hackles #14-18, Pheasant Tail #10-20, Hare’s Ear #10-18, Copper Johns #12-18, Rubberlegs #6-10, Prince Nymph #10-16, Zebra Midge #18-20
Streamers: Black Leeches #4-10, Tan or Olive Sculpins #4-6, JJ’s Special #4-8, Black or Copper Zonkers #6-8, Wooly Buggers #4-10