The Lower Chariton Watershed (HUC 10280202) covers an area of around 3,107 square kilometers in south-central Iowa, USA. It is characterized by gently rolling to flat topography and is primarily used for agricultural purposes. The hydrology of the watershed is dominated by the Chariton River, which flows through the area and feeds numerous small tributaries. During the winter, the watershed experiences cold temperatures and snowfall, which can accumulate and contribute to the water supply in the spring. Surface water in the watershed is used for agricultural irrigation and recreational activities, and is monitored for water quality. The watershed also contains a few small reservoirs, which are used for flood control and recreation. Interesting climatic facts include increasing annual precipitation trends and warmer temperatures in recent years, which can affect watershed hydrology and water quality.