The Neosho Headwaters Watershed (HUC 11070201) covers 1,320 square miles in southeastern Kansas, southwestern Missouri, and northeastern Oklahoma. It is part of the larger Arkansas-White-Red Basin and is characterized by a humid subtropical climate with hot summers and mild winters. The hydrology of the watershed is influenced by several major streams, including the Neosho River, which flows through the center of the watershed. The watershed is also home to several reservoirs, including the John Redmond Reservoir and the Toronto Reservoir. In terms of snowpack, the watershed receives an average of 16 inches of snowfall per year, with the heaviest snowfall occurring in January and February. Surface water quality in the watershed is generally good, with the exception of some localized issues related to agricultural runoff. Overall, the Neosho Headwaters Watershed is an important source of water for the region and provides critical ecological and economic benefits.