Stoneflies are a large part of a fishes’ diet year around. A Rubber Leg Stone Fly Nymph just might be one of the most fished flies on all the freestone rivers in SW Montana. A versatile pattern, which can be swung off the banks with 2x, bobbered up – deep in the Madison River or dropped of the back of a gaint Salmonfly Dry. We like ours tied on a #6 with lead in variations of black, olive and brown. Omit tying in the lead for the dropper scenario…much eaiser to cast. My time at the vice today was spent tying a few dozen of the these and some midge clusters as well.