The Spring River passes through the Southeast Region of Kansas in Johnson County. The river's reach is from Highway 96 to Highway 44. One of two Ozarkian watersheds that extend into Kansas, The river follows a narrow tree-covered corridor through gently rolling terrain; excellent canoeing; unique fish communities confined to drainage including two on Missouri rare/endangered list--Neosho madtom, redfin shiner; rare/endangered mussels.
The general surface of the country is undulating prairie, considerably cut up by shallow draws. A water-shed extends through the county from north to south dividing it into two nearly equal parts. The eastern half is drained by Spring river and its tributaries, the most important of which are Cow, Shawnee and Brush creeks, and the western portion is drained by the Neosho river and its tributaries, the largest of which are Lightning, Cherry, Fly and Four Mile creeks.