1940s Canadian wartime metals mining

VS title cards: "The national film board presents for the director of information" / turning globe with "Canada carries on" / "In this issue, the strategy of metals" / production credits / "today the destiny of nations depends on their possession of the metals vital in war" superimposed on map of Canada / POV passing though Canadian city with tall building, smokestacks, and plumes of smoke / locomotives with large amounts of smoke / aerial view of industrial buildings and road / POV passing homes with rock outcroppings beyond / aerial flyovers of wilderness, fields of snow / VS dog sled and driver struggling through deep snow / VS men in small room; with pipe hands another a small rock which is then examined / VS aerial view shadow of skids on snow plane underneath; view from cockpit / plane takes off / children on swings / snow plane comes in for a landing; taxis past buildings / men handling boxes and bands / man on microphone in cockpit of plane / man at switchboard / snow plane comes in for landing and taxis with skis / unusual streamlined vehicle moves across ice / animation of lines crossing map of Canada with notations: nickel, copper, gold, etc. / aerial flyover of industrial area / VS business district of small town with gas pumps outside hardware store; truck passes horse in harness; false front of building, "Flin Flon Miner" / VS mining processing operations / Note: exact year not known