martello tower #1 at battlefields park overlooking the saint lawrence river in quebec city, canada

martello tower bec city canada plains abraham cannon saint lawrence river fortress historic battlefields park scenic overlook outdoors fortification overlooking quã©bec four towers three still remain integral defenses key control continental interior north america works proposed early 1790s anglo-american crisis 1807 governor sir james craig order construction built 1808 1812 quebec america towers