Great Loop Lock Reference

Lock 42 - Couchiching

Reviewed planning reference for lock approach, communications, and float-plan preparation.

Trent-Severn Waterway

Lock 42 - Couchiching

Couchiching, ON

Latitude / Longitude44.769808
-79.350294

Phone705-750-4900

VHF ChannelNone listed

Operating AuthorityNot listed

Last ReviewedNot listed

Lock Location

Zoomed-in location for this Great Loop lock reference.

About This Lock

Segment: Trent-Severn Waterway. Route status: core Canadian Great Loop route when vessel fits TSW restrictions. Parks Canada lists lockstation; verify current status/notices. Source: https://parks.canada.ca/lhn-nhs/on/trentsevern/visit/posteeclusage-lockstation

Before You Arrive

Fenders ready
Lines ready
Crew briefed
PFDs on deck
Radio on correct channel
Call / monitor lock
Check current notices

Plan With FPW

Add lock planning context to your route and account for lock delays in your float plan.

Plan a Float Plan

Official Source

Official source

Open official source

Navigation Safety Note

This page is a planning reference, not a substitute for official notices, charts, lockmaster instructions, or current local conditions. Always confirm lock status, operating hours, closures, restrictions, and instructions with the official authority before arrival.