The Canadian Shield is the largest landform region in Canada; it covers most of Canada and much of the United States. This region contains some of the oldest rocks in the world (3.96 billion years old).he Canadian Shield is the largest landform region in Canada; it covers most of Canada and much of the United States. This region contains some of the oldest rocks in the world (3.96 billion years old).
In the U.S., the half keg is considered as the most accepted size. The diameter of this keg ranges from 16.6 inches to 17.16 inches. In terms of height, the standard is 23.3 inches. It can hold as much as 15.5 gallons of liquid. When empty, it measures 29.7 pounds or 13.5 kilograms.
It is half the size of the standard beer keg and equivalent to a quarter of a barrel. It will serve roughly 82 twelve ounce cups. The shape of a pony keg resembles that of a full-sized keg, while being much easier to move manually.