The map above is "Compiled from surveys by the Topographical Survey of Canada and from information supplied by Dominion and Provincial Departments and by Railway Companies Revision of map of June, 1914".

It also states "Drawn and printed at the office of the Topographical Survey of Canada, Department of the Interior, Ottawa, June, 1926".

The elevation of the City as officially being Central Park is 3438' above sea level. The part that strikes me interesting is the reference to location marks on the map including Steam or Electric railways, Telegraph stations, Gasoline Stations, and of course the price, 25 cents.

Notice just below the Albert Park name is a circled "P", this is the notation of a Post Office.

This image as seen on a Mac sporting NS4.5 at 800x600 is about 2.5 times larger than actual.

 Calgary Alberta Canada, 1926.