The Cahaba Watershed, located in Alabama and covering an area of approximately 1,870 square miles, is home to the Cahaba River, which is one of the most biodiverse rivers in North America. The hydrology of the watershed is influenced by precipitation patterns, which can vary greatly from year to year. The Cahaba River is fed by numerous streams and springs, and its water quality is impacted by agricultural runoff and urbanization. The watershed also contains several reservoirs, including the Lake Purdy Reservoir, which provides drinking water for the Birmingham metropolitan area. Interesting climatic facts about the Cahaba Watershed include the increased frequency of extreme precipitation events in recent years, which can lead to flooding and erosion. Additionally, the region is vulnerable to droughts, which can impact both surface water availability and agricultural productivity.