The West Cache Watershed (HUC 11130203) covers an area of approximately 293 square miles in southeastern Oklahoma. The hydrology of the watershed is characterized by steep terrain, with high runoff potential during heavy rainfall events. The area receives an average of 47 inches of precipitation per year, with a significant portion falling as snow during the winter months. The watershed contains several surface water features, including creeks, streams, and small reservoirs. The primary reservoir, Lake Ellsworth, serves as a source of drinking water for the nearby city of Lawton. Interesting climatic facts for the region include the frequent occurrence of severe weather events, including tornadoes and thunderstorms, during the spring and summer months. Climate trends indicate that the area is becoming warmer and drier, with an increased frequency of drought conditions in recent years. Additionally, the region is experiencing a decline in snowpack, which has implications for water availability during the dry summer months.