It services the nearby Big Alkali Lake, which is a 489-acre reservoir. The lake allows for motorized boats, but only those that are 5 horsepower or less. Additionally, non-motorized boats such as kayaks and canoes are also permitted on the lake.
| NIOBRARA RIVER NEAR SPARKS | 888cfs |
| KEYA PAHA R NEAR KEYAPAHA SD | 33cfs |
| LITTLE WHITE R NEAR VETAL SD | 145cfs |
| LONG PINE CREEK NEAR RIVERVIEW | 185cfs |
| LITTLE WHITE R NEAR ROSEBUD SD | 96cfs |
| KEYA PAHA R AT WEWELA SD | 54cfs |