The Yellowstone River is fishing well with flows much lower than usual. Fish Golden Stone dries with bead head Yellow Sally droppers. Fish are also eating Golden Stone nymphs, Copper Johns and smaller bead head Mayfly nymphs, Also, look for egg laying Caddis flies during the last hour of daylight. Some very nice fish have been caught on streamers as well, try a black and yellow Wooly Bugger or a JJ Special.