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.
Other keg sizes are also available. The 1/4 keg, also known as the pony keg, contains 7.75 gallons and serves 82 12-ounce or 62 16-ounce beer. The 1/6 keg contains 5.16 gallons and serves 56 12-ounce or 42 16-ounce beers. Using this information, the size and number of kegs needed to serve a specific number of people can be estimated.