Mazda dealer. Milestone Mazda in Lethbridge, Alberta is your Zoom-Zoom location for a new or used Mazda south of Calgary. We will offer you a great deal in a relaxed and enjoyable No Pressure, Full Disclosure buying experience. Our award-winning service department will take great care of your Mazda and we service all makes and models. We will treat you like our business depends on it, because it does!