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St. Louis HUC8 04010201

A 7,602 km² sub-basin of the Great Lakes region in MN, WI. 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
34
Stressed
Drought index
307
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
26%
p10 of record
Water assets
3,681
9 springs · 3,064 wells

USGS gauges (3)

Recent conditions

DateDSCID2+ %Gauges lowFlow pct
2026-09-073071002/2p10

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