crazyrainbow fly fishing, Casper Wyoming


Darth Baetis
The Darth Baetis fly
  • The Grey Reef is at 500 CFS.
  • The Miracle Mile is at 560 CFS
  • Fremont Canyon is at 75 CFS

We have started our weekly fly tying night at the shop! Stop by on Thursday night from 5:30 – 10:30 for some laughs and fishy camaraderie, sometimes we even tie flies too. Materials will be provided for a specific bug we will be teaching, and we have a limited number of tools and vises available, so get here early! Check us out on social media to see what the bug of the week is! BYOB/ BYOW, All ages and experience levels welcome!

The Reef has been the hot spot for anglers looking to get out in the cold, try annelids and midges. The Miracle Mile still has brown tout running, but expect numbers to decline in the coming weeks.


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

Recommended Flies:

  • Midges (Pal, MacGruber, Mayhem) #18-20
  • RS2 #18-20 (chocolate, gray)
  • Rock Worm #14-18
  • San Juan Worm
  • Split Case BWO #16-20
  • Barr’s BWO emerger #16-20
  • Darth Baetis #18-20
  • Scuds
  • Squirrel Leeches #10-14

Streamer Fishing:

The Mile is the place to throw some big bugs, streamers have been most effective when fished very slowly.

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:

“The difference between worm-dunkers and fly fishers is their quality of excuses.. “