Mystic Meadows ~ south of Edmonton on Glen park road. Lovely place, very private, but will get busier during the summer. Runs a pony club.
CFCW farm ~ near hwy 2 near Leduc, Never been there, mostly western but there are a few dressage riders
Zephyr Ridge ~ near glen park road, west of the hwy, 3 trainers ( 1 dressage, 1 jumper, 1 western), I haven't been there in a year or so. Lovely building, dressage lessons are expensive.
Stone country ~ Never been there, unsure of exact location, looks nice ( based on website )
Flying colors ~ never been there, unsure of exact location, mostly dressage, but looks lovely ( based on website)
Hope that helps =)