We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
I'm guessing volume of water coming out of the system's drainage basin, but maybe length too if you included the tributaries, the Ocmulgee and Oconee. Georgia is a big state. I think the entire river system is in Georgia; takes about 4 hours to drive from Atlanta to Savannah at highway speeds.
That video - the part toward the end in the swamp with the cypress trees - is what I spent a large part of my childhood doing, though farther to the Northeast in coastal South Carolina; mostly in the blackwater portions of the Waccamaw.
Speaking of "blackwater", they didn't mention it in the video but given the cypress swamps it wouldn't surprise me if stretches of it, or lower tributaries to it, were blackwater rivers. Could be the volume of water in the river is so large it dilutes the tannins to the point it isn't noticeable, I guess.