Nestled in the foothills of the Appalachian Mountains, Clay is blessed with a natural environment that includes Butler Mountain, the highest elevation in Jefferson County and McCluney's Cave, known locally as Crystal Cavern. Clay is also uniquely positioned in three major watershed basins – the Cahaba, Black Warrior and Coosa.
The Cahaba River, metro Birmingham’s primary source of drinking water, originates from mountain springs just northeast of Clay. The fragile streams that flow through Clay are the beginning of a river that is recognized nationally and globally for its biological diversity.