West Limit 18� 46'
British Admiralty Nautical Chart 590: San Pablo Bay including Carquinez Strait and Suisun Bay is a standard nautical chart
Red represents the ruling dynasty (continuous since the mid-18th century)
PEL Permissible exposure limit
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Skipper Bob: Cruising the Rideau and Richelieu Canals, 27th Edition 2025 Standard Navigation Charts West Limit 18� 46'A complete guide on how to plan a summer cruise of the exciting Rideau and Richelieu Canals in Canada, which can include stops in Ottawa, Montreal and Quebec. What charts and guides to get, fees to expect, where to stop, what cities to visit and when to go. Includes information on the Rideau Canal, Ottawa River, Saint Lawrence River, Richelieu River, Chambly Canal and Lake Champlain. Ottawa, Montreal and Quebec.