Clark Fork River

September is firing on the Clark Fork, especially the lower drainage where Hecuba mayflies (great red quillsplus sporadic but highly effective when they appear. These tannish-brown flies with large wings add a bonus target to the standard autumn menu. Work mahogany duns in 14-16, fall BWOs in 18-22, and October caddis in 6-10, backed by smaller caddis throughout. Consider Jakes hatchbacks, thorax duns, cripple emergers, and small streamers in tan, brown, and olive to match the hatch.