Water levels are getting skinny as we move into fall. I like to fish hi-vis mayfly; or caddis patterns with a bead head dropper nymph like an Assassin, FB PT, or tiger midge. The riffles are best fished with high riding dries like stimulators, parachute ant patterns, foam beetles, & attractor adults. I suggest you have a stout wading staff even though the flows are down.