This looks more like Mount Rundle near Banff
A North American Harvard - the basic pilot training aircraft after WWII until the introduction of the Tutor.
Definitely not a Liberator but an Avro Lancaster. Squadrons of these were housed at Greenwoodin late 1945 pending the "Tiger Force" deployment to the Pacific war. Never happened due to Hiroshima and Naghasaki. I was there in 1947 when they rolled the first out to de-arm and refit for later use in Maritime patrol ASW work