It is cold this time of year in this part of Montana. Be careful and watch for the ice. Make sure to find a steady spot to wade fish. This river has begun the winter fishing mode. If it warms up you can try midges but if it stays cold, you will get the most productivity out of nymphing. Consider using an indicator or double nymphing. Inside the seams seems to be the most productive. Streamers have been working as well.