50°16′16.83″N 111°10′23.39″W / 50.2713417°N 111.1731639°W The military research facility located 5 km (3.1 mi) north of Suffield, Alberta, operated under the name of the Suffield Experimental Station (SES) from 1950 to its renaming to the Defence Research Establishment Suffield in 1967.