We often drive from southern B. C. to Calgary and use 533 both ways. It is a good highway. Coming from the south on 2 toward Calgary, the turn west is on the south end of Nanton. Where it joins 22 there is a good provincial campsite on Chain Lakes , probably busy in summer, especially on weekends. Haven't used 540 so can't comment on that one. 520 west from Claresholm I haven't used either, but do remember that when passing the junction on 22 that it is gravel at that end. Highway 40 is also a good highway, very scenic. It has a pass but I don't remember the grades being long or steep. Note that Highway 40 is closed until June 15.
