Buttress was built in 1940 as the auxiliary airfield to RCAF Station Moose Jaw and its No. 32 Service Flying Training School. These fields were used for practice circuits and also as an emergency alternate. Today the aerodrome is abandoned but the telltale British Commonwealth Air Training Plan triangle of runways is still visible from the air. It is located on private land, south of CFB Moose Jaw, on the west side of Highway 2. The Buttress Post Office opened on 1909-07-01 and closed on 1961-07-31.