Last I looked (and I just checked again a few minutes ago), Google maps still does not acknowledge the existence of a dam and resulting lake in central Alberta. The dam was built back in the mid-1980s and there's a whole paved road system around that area which I've ridden several times ... including the road over the dam. But the Google maps doesn't show any of it ... Google maps shows the area as it was pre-mid-1980s.

Therefore, if you were cycling around central Alberta, for example, you'd be much better off buying a map from the local service station or dropping in at a tourist information centre and picking up one of their maps. You'd at least be getting a map in this century ... and it would have the dam, the lake, and the surrounding roads.

Google maps might be a rough guideline, but there is absolutely no guarantee it is up to date. According to it, that busy road with no shoulder was probably a small, quiet, country road ... based on information from the late 1970s.