The Little Osage Watershed (HUC 10290103) covers an area of approximately 1,054 square miles in eastern Kansas and western Missouri. The watershed is characterized by a humid continental climate, with warm summers and cold winters. Snowfall is common during winter months, with an average snowpack depth of around 5 inches. The hydrology of the Little Osage Watershed is largely influenced by the Little Osage River and its tributaries, which provide surface water for the region. The watershed also contains several reservoirs, including the Lake of the Ozarks and the Truman Reservoir, which provide important water resources for the surrounding areas. Notable constituents of the reservoirs include largemouth bass and catfish, which are popular among anglers. Over the past few decades, the Little Osage Watershed has experienced increasing levels of urbanization and agricultural activity, which have led to water quality issues and habitat loss for wildlife.