The Fremont Canyon Fishing Report provided below is a free service provide by our shop guides and customers. The reports will be updated as often as necessary and we will always change the report if any sudden changes should occur. However please understand that sudden storms can often change conditions overnite before we can change the report. We welcome any Fremont Canyon fishing reports that you would like to provide. 

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75 CFS
Fremont Canyon Hatch Chart
Fremont Canyon Fishing Report Hatch Chart

- July 2022 Fishing Report - 
Fremont: The canyon stretch can be a blast this time of year if you get there early and find a good hole. A good rule of thumb here is to fish whatever is working well on the Reef. Water temps and insect life are mostly going to be the same since this is also a tailwater and similar in ecology. This stretch does get a little more pressure though, so you may want to go with lighter tippet and a more stealthy approach. Stay back a bit and try not to wade or cast over the top of the fish. 

- Fremont Canyon June 2022 -

Fremont is continuing to kick out big fish and fun days. Bring your studded wading boots and be ready to hike back into the canyon a bit to find the less pressured fish. The same bugs that are working on the reef right now will also produce at Fremont, but you may want to go extra light, to 4 or 5x, since these fish do see more anglers. Get there early for the best action!

Fishing Report and Fall Forecast

Oct. 27th, 2021

It’s a common occurrence on float trips. Your guide slides the boat away from the ramp and you get caught up in the early-morning scenery, the conversation, and the reeling in of one big fish after another. Then the action eases for a minute or two and someone looks down at their watch and asks “It is seriously noon already?” The same feeling seems to have spanned this whole calendar year! Now the fall shoulder season is upon us, and things still aren’t slowing down! Our area has seen several moisture events over the past month, but we are pretty good at timing the pulses of dirty water that come through and picking the most optimal stretches for any given conditions. Regardless, if you ask anyone that likes landing big fish, they’ll tell you that off-color water is not a bad thing since it allows us to throw bigger worms, scuds, and streamer patterns! November’s long-term forecast looks typical, with slightly drier conditions and more of those high-pressure systems that create the blue-bird days we all associate with the fall season. We are extremely fortunate that our tailwater system allows for so many options. Whatever mother nature throws our way, there’s always somewhere to wet a line!

Grey Reef is cooking along as usual, with guides throwing mostly smaller bugs underneath an attractor of choice. The go-to rig for this stretch has been the IED worm, trailed by any size 18-20 midge or baetis nymph patterns. Popular small bugs are the Chocolate Thunder, grey or black Mayhem, or purple Darth Baetis. Keep it short and light, with a #4 weight. Dries are standard fare for this time of year, with small black Adams or Purple Haze patterns generating the most attention. For streamers, lighter colors and smaller silhouettes usually do better in the clearer water between the Reef and Lusby. The “trusty” Rusty Trombone and the small and heavy Goldie have seen lots of eats lately. Some guides are reporting success on orange eggs as well.  

Bridge to Town has seen less pressure lately due to dirty water, but the upside to that is it gives the fish a rest. Things are already starting to clear and our guides are starting to work farther down in the system. It’s fall, and the big boy browns are starting to come out to play. This stretch is where you’ll want to go if you like throwing big bugs for big fish. Worms and leeches are steady producers, but don’t forget the little bugs. Any RS2-style pattern can be trailed behind a larger offering and you’ll be surprised how many eats it will get, even in off-color water. 

Miracle Mile fishing is starting to heat up for lake-run trophy browns. They haven’t hit their stride yet, but the closer we get to Thanksgiving, the more they’ll start thinking about the ladies. There’s nothing like the colors on a big male brown when he’s dressed for success, and our guides love taking clients up to the Mile to swing big flies for the chance at a lifetime fish. We have the program dialed in through mid-January, so give us a call if this sounds like your cup of tea.

Fremont Canyon is another place to start looking for big hungry fish in the fall. Egg patterns seem to be fairly effective in this stretch through the colder months, and various orange colors are usually the go-to. Also try going super light and stealthy with a small Cracked-back Baetis and two mayhems. There’s lots of fun waterfarther down in the canyon, but make sure to bring your studded wading boots. Those boulders can get slippery! 

The Platte River Fly Shop  All of our fly shop staff have spent time fishing during the winter season, so they know how important it is to have good gear that fits and works properly for Wyoming’s challenging cold-weather conditions. Take advantage of their technical knowledge regarding the top-line brands we carry by giving them a call or stopping by our beautifully remodeled shop! Our fall clothing lines are out on display, and we’ve got the accessories that make for great gifts! Check out our complete online selection at  

Come see us for our BLACK FLY-DAY SALE on November 26th from 12-8pm. Refreshments and appetizers will be provided along with some KILLER in store exclusive deals! Pop out to the Little Red School House for a good time! This is a wonderful chance for us to connect with the many friends we’ve made through the years. As we head into a time of Thanksgiving, we hope you know we are so very grateful for having had the chance to share some time on the river with you. We hope to see you there!!!

wishes and tight lines!

-All the staff at Wyoming Fly Fishing Guide Service

9/27/21 - Fremont Canyon

The Canyon remains a top destination for do-it-yourselfers and you’ll want to get there early for a prime spot. Remember that most of the same bugs working on the rest of the system will work on Fremont, but you’ll want to scale down your tippet and adopt some ninja habits to keep a low profile.

8/15/21 -

Fremont Canyon remains a wade fishing smorgasbord, with the best opportunities happening during the morning hours. The water on this stretch is usually a little more pressured than elsewhere, so bring lighter tippet and be ready to play the small-bug game with rockworms, PMD’s, and trico nymphs. 

7/17/21 -

Fishing on all our permitted waters is in play!  We had a rain event last week on the Reef, but waters are clearing, and fishing has been great!  The fish are getting super buggy and sliding up into the fast water, which is way more fun to fish! The Mile is kicking out some great fish and the stones have shown!  We are super busy and putting great trips out the door every day.

Fremont is fishing great but can be a little busy.  Bugs have been Crack Back PMD’s, and Mayhem Midges in black and purple.

3-17-20 CoronaVirus and the Platte River Fly Shop. We have reduced staff hours but we are still filling orders with normal business hours. From time to time we do drop ship orders directly from the manufacturer, but some of are suppliers are shutting down their warehouses. If your order will be delayed for any reason, we will contact you. You are not going to catch the disease by being outdoors, so get out there and do a little fly fishing to reduce the anxiety/stress factor. If any of this changes, we will make another post.

10-30-19 Well as we go into winter I think everyone knows the routine by now. Streamers, Midges, Scuds, Eggs and Leeches will be the predominent patterns throughout the winter. This will be our last update until spring unless something major happens.

7-16-19 Fremont is flowing at 900cfs to help keep Pathfinder from overflowing. Now that the Mile flows are coming down, I would expect Fremont to go back to normal 75cfs sometime in August.

4-10-19 Fremont has picked up the last couple weeks with warmer weather. Midges, scuds, leeches and annelids working the best. It won't last long as we expect high flows in Fremont this spring with the heavy snow pack. They will have to divert more water thru this section.

10-16-18 Fremont clarity is now starting to clear after Pathfinder Reservoir turned over last month.

9-23-18 Fremont is a little off color and weedy, but on calm mornings and evenings dry fly action is good. It should really start fishing well once we have a good freeze and the weeds clear out.

Fremont is at 700cfs and fishing is lights out with smaller bugs on the Cardwell section and streamers in the canyon. Fishing Cardwell, it's a blast to stalk and tie into these large fish, playing them in water that hardly seems big enough for them to swim in. Many of the same bugs that work on the Reef will also work on this section. Be prepared to tie into some football sized rainbows, and we have even seen a few browns come out of here this spring and summer. The canyon is always an adventure, with big trout that will test your fighting skills as they weave in and out of deep and bouldery pocket water.

4-14-18 Spring has sprung in Wyoming. The Blue Wing Olives should be showing up in good numbers starting this week. Fremont Canyon has fished well last few weeks. Red Annelids, Scuds, Midges and BWO's along with streamers has been the ticket.

6-29-17 Fremont flows are steadily dropping. Was up there a couple days ago and water looks great. Looks like Pathfinder will not spill over the dam after all. Pmd's and Caddis behind leeches, san juans or annelids should be the prime hatches right now.

6-3-17 Watch for flows to increase in Fremont (it's now at 320cfs) as snowmelt comes increases levels of Pathfinder. It's about 3 feet from coming over the top of the dam. Until then Fremont should continue to fish well.

5-13-17 Flows back down to 80 cfs but not sure how long that will last once spring runoff starts.

5-4-17 Flows have now been bumped up to 450 cfs and will only continue to increase during spring runoff and or if Pathfinder spills over.

4-19-17 The Blue Wing Olive hatch has started!

4/3/17 Fremont is fishing good. The bows are now full swing into the spawn so please be careful where you wade. We expect Pathfinder Reservoir to spill over again this year so please watch the flow reports. 




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