Adopted on June 1, 1968, the flag of Alberta contains the Shield centred on an azure-blue background. The shield is topped by St. George's Cross on a white background, representing King George III and symbolizing British heritage. An azure-blue sky highlights the snow-capped Rocky Mountains, shadowing the green foothills, the prairies and the wheat fields.

Blue, along with Gold, are official colours of Alberta.

The flag is twice as wide as it is high.