Crazyrainbow Fly Fishing, Casper Wyoming

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San Juan Worm


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

Hello Everyone! We are currently in the middle of the fly tying season! You can join us every Thursday night starting at 5:30 down here at the Ugly Bug Flyshop. Any skill level is more than welcome to join us for fly tying night, and we can supply tools, vices, and material to tie some bugs! As always, BYOB and we hope to see everyone down here!

The Reef has been the hot spot for anglers looking to get out in the cold, try annelids and midges. The Miracle Mile is fishing well, try worms and beads if they are not hitting streamers.


Dark colored midges have been very effective, as well as red rock worms and san juans  when on the Reef.

Recommended Flies:

  • Midges (Pal, MacGruber, Mayhem) #18-20
  • RS2 #18-20 (chocolate, gray)
  • Rock Worm #14-18
  • San Juan Worm
  • Scuds (Orange and Yellow)
  • Squirrel Leeches #10-14

Streamer Fishing:

The Mile is the place to throw Worms, Midges and Streamers.

Recommended Streamers:

  • Rusty Trombone #4-8
  • Articulated Goldie #4
  • Articulated Ditch Witch Tan, Olive
  • Bob’s Silver Bugger
  • Thin Mint Bugger
  • Galloup’s Peanut Envy

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:

“ Many men go fishing all of their lives without knowing that it is not fish they are after,” —-Henry David Thoreau.

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