The canal leads off of the river but looks to be very old given the state of roads that cross it.
Below the canal is a very large sand octagon with tall berms for walls and other nested walls.
Ancient Canal & Husn al-Qadisiyah
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© Bing Maps
By kjfitz @ 2005-06-24 17:35:49
Anonymous
@ 2005-07-20 19:17:56
That "very large sand octagon," as you call it, is called Husn al-Qadisiyah. It is an archaeological site in Iraq. It is an Abbasid Dynasty walled fort, octagonal in plan and 1500 meters in diameter, built in the second half of the 8th century AD.