Re: How cold is too cold?
I fish the rocky mountain rivers year round. In the winter, I will say Smaller the better. In Drys and Nymphs. We are using 22 to 32 all winter and even right now. Streamers I am not the aquatinted with so the others can answer that. Look at the bugs, you will see they are very tiny right now. Gnats!
The river last Saturday we used #22 and #24 in nymphs.