Ripple Rock Project: various underground shots of miners at work, hauling rock out by miniature railcars, walking to their stations, digging, packing dynamite. Top side shots of Maud Island pit head set up. CUs of draftsman at work, of hands taking core samples from rack, tieing dynamite fuses, of drills turning. Various MSs of miners manning drills in tunnels. MSs of Seymour Narrows before Ripple Rock, PANs of narrows. Static shot of disturbed water over rock.