Dry Fly Fishing Montana with Dixon Adventures
Montana Fly Fishing Bitterroot High Water Games



So today we had a snow storm in the morning, almost a white out and things looked pretty grim for those early spring fisherman. The wind was down in the afternoon and conditions were not too bad. The day never reached over 50 and there was probably some dry fly activity, but not much. Cold weather has an adverse effect on the strength of a stonefly hatch. The skwalas and nemoura stonefies have both anglers and trout wondering when they will be crawling on the water, but cool nights and cold mornings will cause the stones to go into a dormant phase. The temperatures simply are not conducive for active behavior, wing growing, and mating. I have seem cold weather do amazing dormancy magic to a full fledged salmon fly hatch. Bugs everywhere the day before and a cold front and you have a hard time even finding one the next day. Stoneflies can actually almost disappear and reappear with fluctuating temperatures. Since the skwala hatch has not developed very much the adult stone will be hard to find. So what does this mean if you are fishing. Well if I was fishing I love throwing dries and dreaming of a large brown hitting even if I don’t get a hit in an hour. But if you want to get after it you will have to go underneath and fend off the whitefish in order to find the trout. The streamer fishing may produce some action, but it also might not be very productive. The one thing in your favor is that the flows have bumped and that can cause trout to migrate and be territorial. 3x is fine on nymphs and skwala dries, but 4x might be required in side channels and site specific circumstances. If you are fishing streamers i would be confortable with 2x.
As for the photo above, I thought I would just give an example of how you can use tree shade to see into the water column on cloudy, stormy days. If you look closely you can see a rock ledge in the middle of the river and with good polarized glasses you can observe into the water if you are ever trying to locate trout and potentially sight fish. Look at the 2 windows I labelled and use them to your advantage on cloudy days, it will help you see trout and your fly. The river flows have me very excited about the spring fishing! Good Luck and I hope you enjoy my reports.
March 18, 2012
For those of you that actually view my reports, I am ready for a great season and I hope to provide you with the most honest and informative reports on our rivers. This report will be detailed. I am excited about this first report of the season because I will try and outline a spring fishing forecast that will help determine the conditions of the river, the status of the hatch, and the fishing (good or bad).
River Conditions
I have been fishing the middle and lower sections and I can tell you that as of last Thursday the fishing started to pick up, but is by no means good yet. Especially because we have had rain and snow in the last few days and precipitation is also in the forecast for this week. This is precisely what I like to see. The doldrums of the skinny flows and anxious anglers bombarding the river is always a sore sight for me to see during early spring fishing months. Now that there is a spike in the flows it does a few things to trout and also makes it more difficult for anglers to put pressure on the same holes. In the winter, some of the big trout hang out in the slow, deep water runs that barely move. When flows pick up it causes some of these trout to begin to migrate. The cutthroat and rainbows actually get triggered into realizing that it is time to migrate and fine good spawning gravel. The river is on the rise, but will stabilize and probably even drop depending on nightime temperatures. The graphs that are important to look at are the flows at Darby and at Bell Crossing. Whenever you look at these graphs, because the flows were so low, the influx can cause the graph to look steep even though they have only risen a few inches, so everything is relative. The Darby gauge shows that the river went from 350 CFS to 600 CFS a couple days ago and is already dropping. The middle river graph at Bell Crossing has done almost the same trend, rising from 550 CFS to almost 900 CFS and now it is stabilizing and dropping a little. Flows on the upper river tend to be diurnal (meaning they go up and down in a 24 hour period) and the lower river rises and lowers according to temperatures and precipitation. Now, if you look at the Missoula flows, there is a big difference. I am upset that the USGS site is discontinued at Florence, because the difference between Bell Crossing and Florence is huge. It is the dynamic of the difference between the lower river and the middle river! The Missoula flows show a rise from 1200 CFS to 1800 CFS and starting to level off today. Generally we like the river stable or dropping for the best fishing. I do pretty well on a rising river sometimes, but not until the hatch has developed and matured.

Fishing Report: So let’s get down to business. We all want to know if the skwala hatch is on. Well, there are some skwalas out and some trout looking for them, but the real hatch has not begun. The water temperatures are in the low to mid 40s and the fishing can get pretty good when the next warm up comes. I will be posting river temps when I take them since the USGS temperatures are not posted on our gauges at this time of year. I have floated a few days and the lower river below Stevinsville is tough for dry fly fishing and the skwalas are not really out. The majority of sitings of skwalas are in the Hamilton stretches and down to below Bell Crossing. After all to really understand the skwalas you must know that the hatch does not actually migrate upriver from the warmer lower sections like most stonefly hatches on freestone rivers. The stretches in Hamilton and down river are more abundant in stoneflies because they have better Stonefly habitat. Hamilton is known for being warmer than even Missoula and the hatch can develop earlier in these sections than other sections. Remember stoneflies are photophilic (love the sun). Skwalas, Nemouras, and Capnias all like warmth and that gets them into their nocturnal hatching modes. The most productive dry fly water are slow moving banks and foam holes behind stumps and rocks. They will not hit in the riffles until things warm up. Most fisherman and guides are being productive by trying to see if the skwala bite is on and throwing patterns like bullet heads, foam imitations, and stimulators to imitate the hatch. When the flows pick up like they are you can get away with 3x, but 4x is the typical choice. When flows really get big tippet size is not a factor and it is all presentation. The dry fly activity on these cold days will not happen until the early-late afternoon hours. When the temps were warm last week, Nemouras were actually starting to show themselves. Even though I do not resort to the San Juan Worm technique unless I am in muddier or bigger flows, there are lots of fisherman and guides who pretty much use them as a staple and feel naked without one on. They use them so much, if they did not they would feel like you do when you forget your cell phone. If you are going to nymph fish, I would use a double bead stone or Pat Stone and a copper john, prince, pheasant tail, or another stonefly pattern and run it on a 4-6 foot system.
HATCHES: Skwalas, Nemoura, Capnia, Midges, and in the future are Blue-winged Olives and Gray Drakes

The Bitterroot is dangerous and can problems for novice or even intermediate rowers! Please make sure you understand how to row before navigating the river, especially in the middle and upper stretches!
STREAMFLOWS
UPPER RIVER AT DARBY BELL CROSSING MISSOULA
Be Careful on the Supply Ditch Irrigation Dam between Woodside and Tucker, it was dangerous last year and with every addition of water it can change daily!







