The Sequatchie watershed (HUC 06020004) covers a land area of approximately 1,190 square miles in Tennessee and Alabama. The hydrology of the watershed is dominated by the Sequatchie River, which is a major tributary of the Tennessee River. The area receives an average of 55 inches of precipitation annually, with winter snowpack being relatively rare. Surface water quality is generally good, although some areas are impacted by agricultural runoff and other pollutants. The watershed contains several reservoirs, including Nickajack Lake and Chickamauga Lake, which provide drinking water, flood control, and recreational opportunities. Interesting climatic facts include the occasional occurrence of severe thunderstorms and tornadoes, which can cause significant damage to the area. Trends in the area include increased development and urbanization, which may impact the quality of the watershed's surface water and wildlife habitats.