Great Lakes, The: Their Link With Ocean Shipping

The Great Lakes: Their Link With Ocean Shipping Encyclopaedia Britannica Films Animated spinning globe; map of US showing Great Lakes. Cargo ships on lakes - high pan across lakeside city - Chicago. Map showing traffic pattern of Lakes. Lake Erie, Niagara Falls & canal bypass. Welland Ship Canal, diagram of Niagara Falls region w/ canal bypass. Huge canal locks, steamship thru; vars shots locks filling w/ water. 13:25:40 Good time-lapse photography cargo ship in lock as water level lowers & gates open. Lake Ontario - St. Lawrence River - steamer pulled backwards by heavy currents - canal bypassing rapids - animation of inadequate older locks compared to Welland locks - large ships still cannot reach sea until plans approved. Diagram of rapids. 13:29:35 Lachine Rapids outside Montreal, freighters in dock, goods unloaded - sacks of Canadian wheat, US tires, copper, paper. Confluence of St. Lawrence & the sea. 13:31:28 Rainbow over Niagara Falls. Map shows Great Lakes cities that will become sea ports once canals & locks enlarged and boosts Midwestern economy. Geography; Trade Routes; Natural Wonders; Man-Made Waterways; Midwest; US / Canadian Border; Transportation; Shipping; Commerce; St. Lawrence Seaway; NOTE: One continuous minute sold at per reel rate.