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Description
To guide shipping into Copper Harbor, range lights were first establsihed in the 1840's. In 1869 a new range light system was installed. The front and rear markers are about 100 yards apart. The views shown were taken from the upper deck of the Keweenaw Star while we were entering Copper Harbor.
Range lights are used by a ship's captain to line up his vessel with the channel. When the two markers are positioned vertically, the ship is in the channel. You can see that we are essentially in the channel in one of the two more distant photos and off the channel in the other.