MAPS OF THE UNKNOWN: The Great Lakes Triangle

A new zone of terror, from The Great Lakes Triangle by Jay Gourley. Says Gourley:

There exists within the United States and Canada - principally between longitudes 76° west and 92° west and between latitudes 41° north and 49º north - a region in which several peculiar events have been recorded. The concentration of such events is far greater than any random statistical dispersion would place within these narrow boundaries. The region, on the whole, is sparsely populated, but there are areas of dense population within it. The principal geographic features of this region are five freshwater lakes.

Courtesy Fontana Books, 1977.