The Lake O'Cherokees watershed, also known as HUC 11070206, covers an area of approximately 1,068 square miles in southeast Kansas and northeast Oklahoma. The watershed is primarily rural and agricultural, with a few small towns scattered throughout. The hydrology of the watershed is dominated by rainfall, with occasional flooding occurring during heavy precipitation events. Snowfall is typically minimal in the area, with an average of 15 inches per year. Surface water is abundant, with several small creeks and streams feeding into the lake. The reservoir is used for recreational purposes, including fishing and boating. Some interesting climatic facts include the area's susceptibility to severe weather, including tornadoes and thunderstorms. Recent trends in the area include an increase in average temperatures and precipitation, potentially due to climate change.