Word: mesabi
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...railroads-the Pennsy, the Bessemer & Lake Erie, the C. & O. Work would soon slacken in limestone quarries, zinc smelters, silica diggings. Barge traffic thinned as the tires were banked along the Monongahela, the Allegheny, the Ohio Rivers. Snow lay undisturbed on the great, vermilion open pits of the Mesabi Range...
...rich Lake Superior region, the steam shovels are biting close to the bottom of the vast open-pit iron ore mines, including those in the famed Mesabi Range. Within 17 years the steel industry will have to depend on low-grade iron ores...
From its early shots of the milewide, purplish-red wound which is the Mesabi Range's largest open-pit mine, to the closing clocklike surge of B-17s off their production line into the sky, An American Romance is a cameraman's field...
...proved and probable iron deposits total at least 25 million tons. Engineers estimate unproved reserves up to ten times this figure. Expected annual production by 1946: 2,000,000 tons. This is small change compared to the 65,000,000 tons produced last year by Minnesota's famed Mesabi range, but the comparison does not show the real importance of Steep Rock to the Canadian and U.S. steel industries...
Steel Mathematics this year is starkly simple: 95,000,000 tons of Mesabi iron ore will make 61,250,000 tons of pig iron. Already stockpiled around lower Lake ports are some 16,000,000 tons of ore, which will add around 10,000,000 tons to the pig supply; another 10,000,000 tons of pig will come from other U.S. iron deposits. But at least 3,000,000 tons (on a pig-iron basis) must be stored up to carry steel mills through the next big freeze. That means not much more than 50,000,000 tons...