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02GD018 · ON · Drainage area 136.2 km² (HYDAT)
Near St. Marys, ON
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Latest daily reading (October 10, 2026): water level 6.31 m, flow 0.4 m³/s.
Not a substitute for official flood warnings. Gauge directory
Place names from GeoNames (geonames.org), licensed under CC BY 4.0.