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Lake Superior
This singular lake, narrow, deep, winding, and branching, occupied troughs cut through the solid rooky range, perhaps, by glaciers, thus opening to the mines, as effectually as an artificial channel could, on a grand scale, a waterway of incalculable advantage. But the outlet to this lake was Portage river, a small, crooked stream, five miles long. This, in its natural state,, barred the entrance of large craft to the lake. In 1859, the mining companies, aided by Shelden and Douglass, organized the Portage River Improvement Company, raised the necessary funds, and proceeded to widen and deepen the river by dredging, building a breakwater at the mouth of the dredged channel, where it entered Lake Superior.
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