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Conestogo River in Ontario

River42.9 mi
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Around here

Around Conestogo River

5 mi

Public land: USGS PAD-US

About this river

Conestogo River is a 42.9 mile river. Streamflow is measured at the Water Survey of Canada gauge Conestogo River at Glen Allan (site 02GA028). Reach geometry comes from Natural Resources Canada's National Hydro Network.

Typical flow by month

1959 to 2025

Conestogo River typically runs highest in December, at a median 208 cfs, and lowest in February, at 111 cfs. The highest flow on record for any single day is 9,570 cfs, in 1974.

Show the numbers
Typical flow by month at Conestogo River at Glen Allan, in cfs
MonthTypical (cfs)Usual range (cfs)
January15099 to 275
February11164 to 195
March160101 to 388
April184118 to 528
May11998 to 161
June125102 to 153
July130108 to 171
August139116 to 175
September144116 to 200
October13897 to 191
November14984 to 255
December208114 to 413

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 66 years of record. Statistics published by the US Geological Survey for Conestogo River at Glen Allan (site 02GA028). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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