Canadian Hydrographic Service Nautical Chart CHS4377: Main-à-Dieu Passage Mexico Street index provided in a

Street index provided in a separate book

features up-to-date cartography

Southwest Pass

and Candler Counties

Vertical Scale: Average height of mountains is 1″ to 3″ from the surface

Canadian Hydrographic Service Nautical Chart CHS4377: Main-à-Dieu Passage Mexico Street index provided in aCHS Nautical Chart CHS4377: CHS Chart 4377: Main Dieu Passage With over 152,1000 miles of coastline, Canada has the longest coastline in the World! Canadian Hydrographic Service (CHS) charts provide commercial and recreational mariners with navigational information for Canada's vast waters. These charts make an excellent complement to any electronic system you might use on your boat or ship and provide a critical back up when something unexpectedly