USGS scientist making a streamflow measurement downstream from the USGS gaging station: Niobrara River near Sparks, Nebr.
| Min (1971) | 25th percen- tile | Median | Mean | Most Recent Instantaneous Value Aug 13 | 75th percen- tile | Max (2023) |
|---|---|---|---|---|---|---|
| 399 | 488 | 555 | 584 | 601 | 654 | 964 |