45th Parallel of Latitude Cairn

South of Long Sault, Ontario, a cairn locating the 45th Parallel of Latitude occupies a place on the southeast of Macdonell Island, east of Long Sault Parkway.

THE 45TH PARALLEL
OF LATITUDE

WHICH IS HALFWAY
BETWEEN THE EQUATOR
AND THE NORTH POLE

PASSES THROUGH THIS POINT
— · —
THE ST. LAWRENCE PARKS COMMISSION