Just stumbled across this great NASA image of The Gambia River, or as Kunta Kinte remembered it, the “Kamby Bolongo.” Here’s the Wiki page where I found it. The thin black line is the country’s political border separating it from Senegal, and it actually extends quite a bit farther east. Tay’s village of Sara Kunda is on the north bank, toward the right of this image.
If I had more time, I’d draw the route we took on this image, but I’ll just refer you to this one I already did (I like the prayer mats in front of the map best):
You can read about our big loop trip by clicking on The Gambia. I’m in Colorado now, but my mind takes a trip to The Gambia each day as I go back to write more about it.