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RiverBrain

COWLITZ RIVER AT CASTLE ROCK, WA

USGS

Washington (46.27483, -122.91456) · View on map

Current reading

3,820 CFS

Gauge height: 33.61 FT

Read about 1 hour ago · Aug 26, 2026 11:30 AM PDT

Flow history — last 6 days

Runs on this gauge

No runs currently read this gauge.