Crazyrainbow Fly Fishing, Casper Wyoming

Single Post

North Platte River Fishing Report (Grey Reef, Fremont Canyon, Miracle Mile) 9/20/22

Caddis and BWOs

North Platte River Fishing Report (Grey Reef, Fremont Canyon, Miracle Mile) 9/20/22

North Platte River Fishing Report

(Grey Reef, Fremont Canyon, Miracle Mile) 9/20/22

Grey Reef: 

Flows- 500 CFS

Fishing Report- The Reef is right where we want it to be. Now that flows have dropped to 500 CFS, they will most likely remain there until the spring. Caddis and BWO patterns are working best on the nymph rig at the moment, specifically the Peeping Caddis and TFP Crust Nymph BWO. Start with 4 ft to an AB or BB and adjust from there.  We are most excited to report that dry fly fishing is here! Hoppers with a Caddis dropper are fishing well. The tried-and-true Elk Hair Caddis has also been a favorite as well as the Extended Body BWO. There is suspended moss at the top of the Reef, but things have cleared up past Government Bridge.

Miracle Mile: 

Flows- 600 CFS

Fishing Report- Flows at the Mile have fluctuated slightly over the last few days. They are currently sitting at 600 CFS which is slightly higher than last week. We foresee flows will stay between 550 and 600 CFS through the winter. The nymph rig is the most productive method with Caddis and BWO patterns. Start with 4 ft to an AB or BB and adjust from there. With flows, being low, be mindful of the rocky sections of the Mile if you are floating. 

Fremont Canyon: 

Flows- 85 CFS

Fishing Report- Fremont was slightly dropped from 90 CFS to 85 CFS. Caddis, small black midges, and rock worms have been most productive on the nymph rig. Just a reminder that Kortes Road is under construction, so leave a little more room for travel time than usual. 

The Big Horn:

Flows- 1,050 CFS

Fishing Report- The Big Horn has been fishing very well lately. Barr’s Emerger, the Jackson MacGruber, and Caddis have all been productive on the nymph rig. The Big Horn is still fishing well with both dry flies and nymph rigs. With that being said, we are hearing reports of increased moss on this section. 

Check out flows for all Wyoming rivers here: Wyoming River Flows (

Ugly Bug Fly Shop and Crazy Rainbow Fly Fishing is honored to be your go to fly shop and guide service in Casper, Wyoming. We offer guided fly fishing trips, lodging accommodations, educational courses, as well as the best advice in the west. Stop in the store or find us online! We offer free shipping on all online orders over $50. 

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


The Ugly Bug Crew


Post By

Picture of Blake Jackson

Blake Jackson

Aliquam sed ante facilisis, rhoncus lectus ac, volutpat lacus. Sed varius auctor nunc, sit amet faucibus sapien aliquam sit amet. Praesent condimentum dignissim convallis. Curabitur elementum mi ipsum, eget pretium orci fermentum ut. Praesent aliquam ligula quis interdum aliquam. Sed augue est, blandit eu bibendum tempor, tempus in justo. Vivamus in lacus tincidunt metus fermentum faucibus eget ut nibh. Ut viverra urna quis lectus malesuada, id ultricies libero vehicula. Nunc tempor efficitur purus, sed pretium metus pretium eu. Duis iaculis dapibus venenatis. Morbi consectetur elementum purus non dapibus.

Recent Post

Winter Hours for the Ugly Bug Fly shop

Winter Hours for the Ugly Bug Fly shop

We will now be in our winter hours for the Ugly Bug Fly shop and will be closed on Sundays!…

Water Temperatures and Trout

Water Temperatures and Trout

    Water temperatures can play a huge part in a trout’s eating pattern and overall health. Trout are typically…

Leave a comment

Your email address will not be published. Required fields are marked *