Image: Upper Mississippi River Stairway of Water
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Description: Upper Mississippi River Stairway of Water, the lock and dam network. Left scale is Feet above sea level, bottom scale is Upper Mississippi River mile. Balloons denote Lock and Dam facilities.
Title: Upper Mississippi River Stairway of Water
Credit: http://www.mvp.usace.army.mil/docs/StairwayofWater.pdf
Author: US Army Corps of Engineers
Permission: This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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