Several AERIAL SHOTs around mountains in the Mackenzie River Delta area, including green valleys, winding stream and LSs of delta. AERIAL SHOTs of Mackenzie Delta, AERIAL SHOTs of clouds over delta, land and water visible through clearings in cloud cover. AERIAL FOLLOW SHOTs of another helicopter flying at a lower altitude over the Mackenzie Delta, FOLLOW SHOT as it lands on a peninsula, near small camp composed of few mobile houses. AERIAL SHOTs around peninsula.