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Brief description of this National Historic Site on McNabs Island, near Halifax, Nova Scotia. Now grassy ruins, the fort once served as a key element of harbour defence from 1888 to the Second World War. Website has visitor information and links to maps and other related sites.

Brief history of this National Historic Site on McNabs Island, Nova Scotia. For three-quarters of a century Fort McNab served as a gun battery and as the gatekeeper of Halifax Harbour. From the days of John A. MacDonald until the days of John Diefenbaker, Fort McNab guarded the outer channels to the harbour. Through two world wars it housed the port's Examination Station and was responsible for the crucial task of checking ships to ensure that they did not pose a risk to port security.