My Dad used to manage a feed mill, I remember there being a couple on 26th st ne Calgary sometime ago. Check out this list, looks like Co-op is still operating in that area. https://www.anacan.org/files/Commerc...ed%20Mills.pdf
I used to deal with coop on 26 NE but got tired of poor attitude and no returned phone calls on my orders. Dont think they even sell to public anymore just some hardware store distributes small orders for them if you need less than a ton. I have bought from UFA Airdrie and Strathmore since then.
If you want it from the COOP mill in Calgary that was mentioned, I would move fast they are going to start a big upgrade in the next few weeks and will be shutdown.