The Ellis belt alpha is the only asteroid belt in the Ellis system, United Empire of Earth (UEE). Best known as the location of one of the racetracks in the Murray Cup, the belt first began to be used as an obstacle course for spacecraft by off-duty workers on the Green (Ellis III) and Noble (Ellis V) terraforming projects. These early races became a tradition for inhabitants of the Ellis system, and were later incorporated into the modern day Murray Cup. Today, it is outfitted with many permanent installations used during the races.