Canadian Hydrographic Service
Central and Arctic Region

CA573316 - PORT STANLEY

DEPTHS

Depths are in metres and are reduced to Chart Datum (a Low Water Datum), which on

Lake Erie is 173.5 metres above International Great Lakes Datum (IGLD) 1985.

ELEVATIONS

Elevations and clearances ate in metres above Chart Datum.  Underlined figures on

drying areas or in brackets against drying features are in metres above Chart

Datum.

HORIZONTAL DATUM

Horizontal Datum is North American Datum 1983 (NAD83), which is equivalent to

WGS 84.

SOURCES

Surveyed by the Canadian Hydrographic Service, 1987 to 2003.  Topography is from the

Ontario Ministry of Natural Resources.  Topographic contours are above Mean Sea Level

at an interval of 5 metres.

SILTING

Mariners are cautioned that owing to continuous silting, depths are constantly

changing and varying amounts of refilling must be expected.

CABLES

The symbols for submarine  and overhead cables do not differentiate between cables

conducting electrical power, often high voltages, and other types of utility cables.

Mariners are advised to exercise caution when passing under all overhead cables and to

avoid anchoring or conducting seabed operations in the vicinity of submarine cables.

The clearance of an overhead cable may differ from its charted value due to changes

in atmospheric conditions, water levels and other factors.  For additional

information,consult Notice to Mariners Annual Edition No.  16 and the appropriate

volume of CHS Sailing Directions.

See Notices to Mariners for subsequent corrections on this chart and Notices to Shipping in force for 
hazards or changes essential for the safety of navigation. 

 Fisheries and Oceans Canada 2020. Published by the Canadian Hydrographic Service. A licence is required from the
Canadian Hydrographic Service (www.charts.gc.ca) to reproduce or distribute this work.

