Crazyrainbow Fly Fishing, Casper Wyoming

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San Juan Worm


Current CFS.

  • The Grey Reef is at 500 CFS.
  • The Miracle Mile is at 1850 CFS
  • Fremont Canyon is at 75 CFS

Fishing is hot right now. Water clarity is good from Grey Reef to Government Bridge, but the river picks up some color soon after.

Just a reminder, the Redds from cable to cable on the Grey Reef stretch are closed to fishing April 1st until April 31st due to the spawn.


Annelids, midges and eggs have been working very well when fished 4.5-6 feet under an indicator with a single BB weight..

Recommended Flies:

  • Midges (Pal, MacGruber, Mayhem) #18-20
  • RS2 #18-20
  • Jujubee Midge #18-20
  • Trout Beads (chartreuse, butterscotch, orange)
  • Egg Patterns
  • Rock Worm #14-18
  • Squirrel Leech
  • San Juan Worm
  • Flashback Scud orange, olive, grey #12-14

Streamer Fishing:

Fish have been caught on streamers, and it has been hard to beat the ‘ole Trusty Rusty.

Recommended Streamers:

  • Rusty Trombone #4-8
  • Articulated Goldie #4
  • Articulated Ditch Witch Tan
  • Bob’s Silver Bugger

Here at the Ugly Bug we are excited to be your go to fly shop and guide service in Casper, Wyoming, We have lots of availability for guided trips and lodging. Not to mention our online shopping is easy and fast with free shipping on all orders over $50.00 dollars.

Got some fish pics you would like to share? Shoot them to us in an email to!



Fly fishing quote of the week:

” You can’t say enough about fishing. Though the sport of Kings, it’s just what the deadbeat ordered. “

-Thomas McGuane

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