The end of August is almost near, and fishing remains to be rather productive. As many may know we have experienced rather inconsistent water flows this year, and especially for this month. The Bighorn is currently flowing at 2,610 cfs, and we have not heard any reports of any changes at this time. As for water temp no waders are needed, as the water is now at 59 degrees. It would be wise to still have waders on hand, in case of any thunderstorms. Anglers are still fishing many different patterns such as tricos, pseudos, caddis, ants, beetles, hoppers, sowbugs, and a variety of streamers. All of these patterns have had their moment in the spotlight, but what you use depends on what time of day, and what section of river you are fishing. As for weather we are expected to receive rain showers for the next couple of days, with temperatures expected to reach into the low to mid 70’s. This will most likely dirty up some tributary’s such as soap creek, rotten grass, and other irrigation runoffs throughout the river.
Afterbay to 3 Mile
The upper three miles has been fishing rather consistent, but mainly during the evening hours. It has not been uncommon for anglers and guides to float 3 mile to Bighorn in the morning, and cruise on up to the upper 3 in the evening. Expect to see a few fish still up on what is left of the Black Caddis, but be prepared to fish both small pseudo mayflies, and terrestrials. Many anglers have done rather well on ants, beetles, and hoppers. The other night a few of our guides were in the midst of a honey ant hatch, which made for a few solid hours of great dry fly fishing. When nymphing it is important to ignore the slow water and focus on faster runs and tail outs, as they will have more oxygenated water. The weeds and grass are there, but have not been driving anglers to the point of madness. Nymph patterns such as the Ray Charles (grey&tan in 16 & 18), pseudo wondernymph (18 and 20), CDC Rs2 (Grey in #20), and Cream quill (18 & 20) are our recommended choices.
3 Mile to Bighorn
This has by far been the most popular float, and has had the most variety of hatches. Fish have been up on tricos early morning, and expect to see fish up on the spinners throughout the day. Trico duns have appeared around 7 am, with the spinner fall beginning around 10 am. Patterns such as the cdc para-spinner trico, cdc thorax trico, and hi-vis trico spinner (18 to 20) have all been rather effective. Pseudos have been consistent throughout the day. Patterns such as the cdc para-spinner bwo, and cdc biot dun (20 and 22) have been the patterns of choice. With the small sizes we would recommend fishing a indicator fly such as an ant, caddis, or parachute Adams. As for terrestrials, ants, beetles and hoppers have all been rather effective. It is important to both pound the banks, and find a consistent pod of risers when fishing terrestrials.
The elusive Mahogany Dun mayfly has come off, and it is not for sure as to when they will appear again, but be prepared! Have a few dries on hand to match them if needed. Patterns such as the Harrops CDC Mahogany Dun, Orange Hi-Vis Parachute Spinner, and Parachute adams (14 & 16) will do the job. As for the weeds and grass, there is a considerable difference from the upper. It is still not that big of an issue, but expect to clean flies here and there. As for streamers, throw black, olive in articulated and non-articulated. Patterns such as the squidly, meat whistle, thin mint, and circus peanut have been producing fish.
Bighorn to Mallards
Expect to deal with both weeds, grass, and murky water. You can expect to see pseudos, tricos, and have decent terrestrial fishing all the way down. The water clarity will be murky once hitting rotten grass, so having a variety of steamers in black and olive is key. Nymph fishing is possible, but expect to be cleaning your flies throughout the day.
Mallards to Two Leggins
We have received a report from local guide Bob Krumm who had an excellent morning on tricos, mahogany’s in the afternoon, and great success on streamers early in the float. The grass though is a large issue, and expect to clean both nymph and streamer rigs throughout the day.
Categorised in: Fishing Reports
This post was written by Bighornangler