1875  There are, no doubt, considerable portions of the North-West Territories external to the Wheat Belt which are capable of producing cereals.
1905  The winters are much milder than in the wheat belt, and the warm "Chinook" winds melt the snow at frequent intervals, enabling cattle and horses to forage for themselves.
1965  . . . Canada's "Wheat Belt" is generally pictured as a flat featureless expanse of prairie with nothing rising higher than a country grain elevator.