Yellowstone Park
As is usual, the Firehole River offers the best top water fishing in the Park. White miller caddis, BWOs and PMDs provide the action which is best on cool, a bit unsettled days. Swing those olive or tan soft hackle patterns (sizes 14-16.) through runs and holes. Best time for wet fly action on Shoshone and Lewis Lakes is as soon after ice out as possible.
Flies to fish:
