A 7,551 km² sub-basin of the Lower Colorado region in AZ, MX. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 200 | 0 | 2/4 | p44 |
| 2026-10-20 | 200 | 0 | 1/4 | p74 |
| 2026-10-19 | 200 | 0 | 3/4 | p15 |
| 2026-10-18 | 200 | 0 | 4/4 | p13 |
| 2026-10-17 | 200 | 0 | 3/4 | p16 |
| 2026-10-16 | 200 | 0 | 3/4 | p16 |
| 2026-10-15 | 200 | 0 | 1/4 | p34 |
| 2026-10-14 | 200 | 0 | 2/4 | p36 |
| 2026-10-13 | 200 | 0 | 2/4 | p41 |
| 2026-10-12 | 200 | 0 | 4/4 | p11 |
| 2026-10-11 | 200 | 0 | 4/4 | p6 |
| 2026-10-10 | 200 | 0 | 2/4 | p25 |
| 2026-10-09 | 200 | 0 | 2/4 | p30 |
| 2026-10-08 | 200 | 0 | 2/4 | p36 |