AERIAL SHOTs along wooded coast in Northern British Columbia, numerous log booms tied together in river. Various shots of tugboats moving on river towards and along log booms, tugboat hauling log booms, fighting against current, including view of backwash from tugboat as it pulls log boom. Fast BOATING SHOT of wooded river bank. Shots of tugboat moving alongside log boom, of log booms in water, of rope hauling log booms, of log booms being pulled along river, of tugboat speeding through rough water.