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2d Division of Engineer Corps, in the Sierra Madre, New Mexico, November, 1867. (Water Shed of Continent,) 1,000 miles west of Missouri River. (Boston Public Library).jpg - Flickr upload bot

2d Division of Engineer Corps, in the Sierra Madre, New Mexico, November, 1867. (Water Shed of Continent,) 1,000 miles west of Missouri River. (Boston Public Library) (cropped).jpg - Monopoly31121993