A 4,345 km² sub-basin of the Arkansas-White-Red region in CO, NM, OK. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
No active discharge gauges in this sub-basin.
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 346 | 82.94 | — | — |