The hopper fishing on the Bow is on thanks to several days of steady flows within the normal range and warm, dry temperatures. Realistic ties in size 10 and 12 like KK's Henneberry Hopper are great on their own, or try hopper dropper fishing under a big foam fly like Fat Frank. Droppers that imitate caddis pupae and stonefly nymphs should see some action
Dry fly fishing with hoppers has been best before lunch time. Later in the evenings we are still seeing some fish coming up for small caddis (try small sizes of Bloom's Para Caddis or Swisher's Dancing Caddis), or fish an emerger behind a hopper. You'll find fish along the banks and cruising the riffles. Tricos are on throughout the day.
If you are keen to fish a dry fly and nothing seems to be hatching, bust out the ants and dead drift one along the bank.
Streamer fishing has been effective at times when weather has shut down the dry fly fishing. White and olive seem to be the hot colors right now and will move fish out of the deeper pools and undercut banks. Days when the weather is unsettled are best for streamer fishing.
Flies to try:
Dries: Hoppers in 10 and 12 like Yeti's, More-or-less, KK Henneberry, Bloom's Parachute Caddis, Dancing Caddis, Adams Parachute, assorted trico patterns.
Nymphs: Still a great option to trail below a hopper or fish with an indicator. San Juan Worm, peacock leech, copper john, prince nymph, chenille stoneflies.
Streamers: B&W clouser, White dungeon, skiddish smolt, coffey sparkle minnow.