A 3,824 km² sub-basin of the Missouri region in MT, WY. 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 |
|---|---|---|---|---|
| 2026-10-22 | 293 | 92.8 | 0/1 | p58 |
| 2026-10-21 | 293 | 92.8 | 0/1 | p52 |
| 2026-10-20 | 293 | 92.8 | 0/1 | p44 |
| 2026-10-19 | 293 | 92.8 | 0/1 | p41 |
| 2026-10-18 | 293 | 92.8 | 0/1 | p36 |
| 2026-10-17 | 293 | 92.8 | 0/1 | p71 |
| 2026-10-16 | 293 | 92.8 | 0/1 | p76 |
| 2026-10-15 | 298 | 97.63 | 0/1 | p73 |
| 2026-10-14 | 298 | 97.63 | 0/1 | p75 |
| 2026-10-13 | 298 | 97.63 | 0/1 | p75 |
| 2026-10-12 | 298 | 97.63 | 0/1 | p72 |
| 2026-10-11 | 298 | 97.63 | 0/1 | p44 |
| 2026-10-10 | 298 | 97.63 | 0/1 | p35 |
| 2026-10-09 | 298 | 97.63 | 0/1 | p32 |