The BLM is a deadly small mayfly nymph. This fly was originally designed by Tim Heng of Taylor Creek Fly Shop in Basalt, CO. It is a great mayfly/midge imitation for the waters of the Roaring Fork Valley, but will work anywhere trout feed on mayflies and midges.
All Umpqua flies are tied on Tiemco Hooks. These top quality Japanese hooks are tempered and forged for strength and chemically sharpened.