Re: small mouth flies for murky river?
I always follow a couple of lines of thought for this.
First of all, the more stained the water, the higher in the water column the fish may tend to hold.
In clear water the fish will, for safety sake, be glued to the bottom. In murky water they feel a little safer and will tend move up.
Second. I try to match the fly color to the water clarity.
In clear water I like bright colors like white, chartreuse, and silver.
In murky water, I like to fish more earth-toned and subdued colors. Brown, yellow, orange, gold...that sort of thing
IMO it makes a difference
The simpler the outfit, the more skill it takes to manage it, and the more pleasure one gets in his achievements.” --- Horace Kephart