The Rio is coming into shape and the fishing is getting good. Stoneflies and caddis are on the menu! If the day is slow, you may need to tie on a dropper or a streamer
Nymphs: Prince nymphs 10-16, Pats Rubberlegs 6-12.
Chubbies in every color 6-12, Christiansen Salmonfly, Rouge Foam Stone sizes 6-8, 8-14 Stimulators, 12-16 Elk Hair Caddis.
The Rio is fishing with streamers, nymphs. Dry fly fishing will be here soon. With increasing flows, stonefly nymphs and dark streamers are a good idea.
If you only had one fly: Pats Rubblerlegs
Nymphs: Prince nymphs 10-16, Pats Rubberlegs 6-12 or Jigged Pats 10, 20 Incher 8-10, Brown or Olive Micro May 18, Euro Nymph Jigs 10-16.
Chubbies, Christiansen Salmonfly, Rouge Foam Stone sizes 6-8
Streamers: Sparkle Minnow, Kreelex, Complex Twist Bugger, Rubber Bugger, Galloups Mini Dungeon