In response to my previous post, Rahn wondered what areas fed water into Lake Lanier, and the other area lakes. This was in response to my saying that rain north of Huntsville, Alabama would help reduce the drought. I did a little digging to find out the answer, and it may surprise you. Lake Lanier is part of what is called the ACF river basin. ACF stands for Apalachicola-Chattahoochee-Flint, the three major rivers that ultimately drain down into the Gulf of Mexico in Florida. Lake Allatoona is part of the ACT river basin, whose initials stand for Alabama-Coosa-Tallapoosa. That basin also drains into the Gulf near Mobile, Alabama. The map below shows the boundaries of the two basins:

The brown part of the map is the ACT river basin, and the green and yellow parts are the ACF basin. The yellow portion is the part of the basin that drains into Lake Lanier.

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