Lamar River drainage streams are in great shape now. Strong thundershowers can create erosion that can temporarily discolor water, especially in the Lamar River. Right now morning spinner falls, caddis and diminishing golden stonefly activities, and increasing interest from fish in terrestrial insects provide the ways to best success.
The Snake River is another Park stream that can become discolored because of thunder storms causing erosion. It seems more overlooked than the Lamar River, but it offers interesting fishing for those taking time to give it a try. This time of year it hosts brown and Snake River fine spotted cutthroat trout as well as whitefish. All these reach trophy sizes. Caddis life cycle patterns, golden stone fly adult patterns, traditional dry attractor (it’s almost sinful not to try humpys on Wyoming waters!) and terrestrial insect patterns and streamers presented in low light conditions bring interest. The Snake River is easily approached from where it exits the Park. Park at the South Entrance picnic area and head upstream on either side of the river. You will encounter a lot fewer anglers than on the Lamar, Madison, or Yellowstone Rivers.