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Here are some Alabama boat ramps; http://www.outdooralabama.com/fishing/freshwater/where/rivers/chatt/access/.
Chattahoochee Riverkeepers' Watershed Map.
Just a collection of random notes and links for continuing the adventure down the Chattahoochee River that started with ATL50 - Canoeing thru the Chattahoochee River NRA.
http://www.paddling.net/places/showReport.html?2978 << Whitesburg to Franklin (27 miles)
16 dams along the river; https://maps.google.com/maps/ms?msid=200034780116135831493.000455b21e1a1265cc0c3&msa=0
Some crazy fellas doing a 102 mile non-stop trip from Atlanta to Franklin that lasted 26.5 hours; http://www.paddling.net/places/showReport.html?1490.
A motorboat blog; http://downthehooch.blogspot.com/
US Army Corps of Engineers navigation chart book of Apalachicola, Chattahoochee, and Flint Rivers; http://www.sam.usace.army.mil/Missions/CivilWorks/Navigation/NavigationCharts.aspx (coming soon)
Flint River??