CHS High Water Mark Lines

Name: CHS High Water Mark Lines
Creator: Government of British Columbia
License: https://open.canada.ca/en/open-government-licence-canada

The Canadian Hydrographic Service (CHS) High Water Mark Lines provide alongshore and across-shore geomorphological and biological attributes of the high water mark shoreline. The lines are used in the CHS nautical charts to represent the level reached by sea water at high tide.