Lake Iliamna HUC8 19030206
A 18,530 km² sub-basin of the Alaska region in AK. 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
81
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
120%
p66 of record
Water assets
145
11 springs · 18 wells
USGS gauges (2)
- ILIAMNA R NR PEDRO BAY AK153003001,050 cfsp62 · normal
- KVICHAK R AT IGIUGIG AK1530050029,300 cfsp70 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/2 | p66 |
Top water assets
- 65Kvichak R At Igiugig Akriver
- 54Alaska Glacier 18316glacier
- 54Alaska Glacier 19729glacier
- 54Alaska Glacier 18314glacier
- 54Alaska Glacier 19734glacier
- 54Alaska Glacier 19759glacier
- 54Alaska Glacier 19765glacier
- 53Groundwater — Laswell
- 53Surface Water — Adlspring
- 53Groundwater — Laswell