Dark CUs of miners in cage, descending into mine at the giant Yellowknife gold mine in the Northwest Territories; lighting is privided by lamps on miners' helmets. UNDERGROUND sequence showing men at work, drilling into wall. Shots include views of drills in action and of operators' faces. Shots of dragline bucket scraping ore along floor of stope, including view of dragline operator. MS of underground ore train pulling in and ore being dumped into hole.