Hoppers are happening on the Yellowstone, the Missouri is crowded, Madison is fishing well, increased flows on Big Hole, black caddis at Bighorn.

https://mtstandard.com/outdoors/fishing-report-fat-hopper-patterns-still-fooling-fish/article_d2ea5e7e-f387-5be6-b9d1-07f7da992c6f.html