Image: Inland navigation system
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Inland_navigation_system.png (500 × 541 pixels, file size: 250 KB, MIME type: image/png)
Description: Clip of graphic taken from Corps of Engineers website, http://www.tec.army.mil/echarts/inlandnav/, showing the US inland navigational system. Trimmed, enlarged, and smoothed to remove artifacts with the GIMP.
Title: Inland navigation system
Credit: Own work by the original uploader
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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