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Las Vegas Wash HUC8 15010015

A 4,866 km² sub-basin of the Lower Colorado region in NV. 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
59
Moderate
Drought index
200
Severe
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
25%
of 16 reporting
Median flow
115%
p75 of record
Water assets
2,230
145 springs · 1,886 wells

USGS gauges (16)

Recent conditions

DateDSCID2+ %Gauges lowFlow pct
2026-09-0720004/16p75

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