Union County, South Dakota
2 active USGS gauges in Union County. See South Dakota streamflow overview for the full state picture.
USGS Stream Gauges in Union County
| Station | River | CFS | Gage (ft) | Condition |
|---|---|---|---|---|
| Big Sioux River Near Hawarden, IA | Big Sioux River | 1,250 | 13.07 | Normal |
| Big Sioux River Near Jefferson, SD | Big Sioux River | 1,830 | 11.15 | Normal |