Crown land, also called public land, covers about 60% of Alberta (Government of Alberta). The short answer to the most common question is that most of it isn't for sale. The province leases public land for grazing, farming, industry and recreation, and only now and then offers rights to it through auctions and tenders.
What you can buy on the open market is private land that sometimes comes with Crown grazing leases attached. The listings below are properties whose descriptions mention grazing or Crown leases, updated from the Pillar 9™ MLS® System.