Canadian Hydrographic Service bathymetric data

Available online: 


Produced by the Canadian Hydrographic Service, these .txt files are points at a 20 metre resolution. Note that the area covered is from just west of the Rideau Canal (by Parliament Hill) along the Ottawa River to the Saint Lawrence, all the way to Sorel-Tracy, QC. Also includes parts of the Richelieu River and the Canadian portion of Lac Memphrémagog.

Data Producer: 

Canadian Hydrographic Service - Quebec Region

Authorized Users: 

Carleton University students, faculty and staff


Users are required to sign a Data Use Agreement before files may be acquired. All use of the data shall acknowledge the Canadian Hydrographic Service as the owner of copyright. Data is provided 'as is' and the Canadian Hydrographic Service makes no warranties as to the condition, quality, completeness or freedom from error of any dataset, or its fitness for a particular use.

Content last reviewed: August 2, 2018