Jim Cannon, owner of the Blue Quill Angler in Evergreen, Colorado, suggests making some noise when dropping hoppers into holding water. “Try picking out a suspected area that holds trout. This could be a deeper riffle or hole. Then slam your hopper down on the water as hard as you can, imitating a hopper that has just been blown onto the water. Sometimes this will trigger an explosive strike that will shock you.” On CanyonCourier.com.