Based on the Fortress Earth database, there are 113 documented star forts in Canada and 15 in Mexico. In the United States (including Puerto Rico), the database lists 441 sites.
While one source mentions a dedicated file containing 1,399 traditional star forts globally, the specific count for the North American continent (Canada, US, Mexico) totals 569 fortifications according to the provided mapping progress data.
Canada: 113 forts
United States (incl. Puerto Rico): 441 sites
Mexico: 15 forts
The question:
How many Star Forts are known on the North American Continent incl. Mexico Canada etc. ?