Waterlands
St. Marys River
USGS · 04127885
ST. MARYS RIVER
USGS · 04127885LIVE

ST. MARYS RIVER AT SAULT STE. MARIE, ONTARIO

SAULT STE. MARIE, ON46.4983°N, -84.3153°W Updated 20 hr ago
FLOW RATE
79,208cfs
GAUGE HT
579.99ft
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
79,208cfs 16.3% vs avg
Optimal band: 57,55177,863 cfs
PERIOD HIGH
90,606cfs
PERIOD LOW
36,368cfs
RUNNABLE
61%
last 1 year in band

Gauge Height

579.99ft
Weather Map

Loading weather map…

Your History · ST. MARYS RIVER AT SAULT STE. MARIE, ONTARIO

Track your history

Sign in to track your sessions at ST. MARYS RIVER AT SAULT STE. MARIE, ONTARIO: best days, monthly trends, and time on the water.

Sign in
SPONSORED

Station Location

46.4983, -84.3153
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-09-01 00:00 UTC
Site #04127885·USGS

Create a free account to save favorites, set flow alerts, and track conditions