The Big Nemaha Watershed (HUC 10240008) covers an area of approximately 1,518 square miles in southeastern Nebraska and northeastern Kansas. The watershed is drained by the Big Nemaha River, which flows into the Missouri River. The region experiences a temperate continental climate with hot summers and cold winters. The area receives an average of 30 inches of precipitation per year, with the majority falling in the form of rain during the spring and summer months. The watershed is home to several small reservoirs, including the Big Nemaha Reservoir and the Indian Cave State Park Reservoir. The region has experienced several severe flooding events, including a major flood in 1993, which caused significant damage to the area. While snowfall is common during the winter months, the specific snowpack varies from year to year. Overall, the Big Nemaha Watershed plays an important role in providing water resources to the surrounding communities and supporting the local economy.