Programs Cottonwood Smoke, Fish Opener and The Polaris Project KYUK Published June 28, 2018 at 1:48 PM AKDT Facebook Twitter LinkedIn Email Listen • 31:35 1 of 8 Cottonwood used for smoking fish. Mark Leary 2 of 8 Mark Leary lights the fire with birch bark and spruce kindling to get the cottonwood burning - only natural materials are ever used in the smudge. Mark Leary 3 of 8 Once the cottonwood catches it’s covered with tin so it will burn slow and smoky."; Mark Leary 4 of 8 During cool damp weather, a fan is kept on to circulate the air and smoke. Mark Leary 5 of 8 Chopped cottonwood ready for smoking fish. Mark Leary 6 of 8 Mark Leary's fish drying. Mark Leary 7 of 8 From left to right: Environmental Coordinator Darcy Peter and Scientist, Sue Natali. Petra Harpak / KYUK 8 of 8 From left to right: Scientist Sue Natali and Environmental Coordinator Darcy Peter. Petra Harpak / KYUK