on February 10th, 1848, the Wisconsin, and from the Vermillion mines in Minne- of from 47.50 per cent to 61.26 per cent of pure iron, first iron to be made in the Lake Superior region was with an average for the whole district of probably about 57 per cent of iron. Although the first mine in… … Length of tramway, 360 feet. Bucket capacity, 5 tons. Length of bridge, 222 feet 8 inches. Bucket lifts 5 tons. TWO BROWN TRAMWAYS UNLOADING A TYPICAL LAKE STEAMER. THREE FAST PLANTS UNLOADING WHALEBACK STEAMER. Copyright 1905 by Maher. The iron ore lies so near the surface that after stripping the…
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