History of prairie grain elevators

I came across this excellent summary and history of western Canadian grain elevators on the web (click on title) that's put out by "Encyclopedia of Saskatchewan". It also shows how elevators function and why they're being replaced by larger, much different-looking buildings. It's of interest, also, that the farmers organized themselves in the early 1900's to form their own co-operatives and take over from the control of the private companies that prevailed at the time.
My photo of the Hagen elevator on this blog is an example of a Pool(ed) elevator that was owned by the farmers for many years.