Canadian Forces Detachment Alsask (CFD Alsask) was a military radar station in the Rural Municipality of Milton No. 292, just north of the hamlet of Alsask, Saskatchewan, Canada, a village on the Alberta-Saskatchewan border. It is within the Rural Municipality of Milton No. 292. The station consisted of three radar domes, housing, a school, swimming pool, with a staff complement of 125 (military) and 60 civilian workers.