Boise-Mores HUC8 17050112
A 1,608 km² sub-basin of the Pacific Northwest region in ID. 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.
Health score
74
Moderate
Drought index
166
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
86%
p41 of record
Water assets
228
26 springs · 36 wells
USGS gauges (2)
- MORES CREEK AB ROBIE CREEK NR ARROWROCK DAM ID1320000023 cfsp35 · normal
- BOISE RIVER NR TWIN SPRINGS ID13185000350 cfsp47 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 166 | 0 | 0/2 | p41 |
Top water assets
- 69Clear Creekriver
- 69Grimes Creekriver
- 69Elk Creekriver
- 69Grimes Creekriver
- 69Sheep Creekriver
- 69Sheep Creekriver
- 69Devils Creekriver
- 69Grimes Creekriver
- 69East Fork Sheep Creekriver
- 69Sheep Creekriver