Reviewed planning reference for lock approach, communications, and float-plan preparation.
St. Lawrence Seaway
Beauharnois Lock 4
Beauharnois, QC
Latitude / Longitude45.315500 -73.925000
PhoneSeaway pleasure craft contact / verify current notice
VHF Channel14/68 verify
Operating AuthorityNot listed
Last ReviewedNot listed
Lock Location
Zoomed-in location for this Great Loop lock reference.
About This Lock
Segment: St. Lawrence Seaway. Route status: all-possible Lake Ontario/St. Lawrence/Champlain-route connector. One of the two Beauharnois locks. Official Seaway source identifies Montreal-to-Lake Ontario as 2 U.S. and 5 Canadian locks. Source: https://greatlakes-seaway.com/en/the-seaway/our-locks-and-channels/
