The Blaauboschkraal stone ruins, also known as Adams Calendar, are a provincial heritage site in Mpumalanga, South Africa. Located near Emgwenya, about 10 kilometers away, the site was declared a national monument on April 18, 1975. It is recognized by the South African Heritage Resources Agency.Bokoni Stone RuinsOverviewThe Blaauboschkraal stone ruins were part of a…