Greater Canyon

The Greater Canyon (グレーターキャニオン) is a large-scale demilitarized zone running down the center of North America, dividing the Capitalist Corporations and the Information Alliance.

Background
The world's largest Blank Area, the Greater Canyon is an absolute demilitarized line extending down the center of North America from north to south, dividing the former between west and east, separating the central territories of the Capitalist Corporations and the Information Alliance respectively. It is perhaps the greatest scar left behind by the collapse of the United Nations. Although it is called a line, it is more than 150km across from east to west and the two world powers have an exclusion zone that extends for 200km. There are twenty Second Generation Objects, from both powers, monitoring the area.

The Rio Grande District is located at the southern end of the Greater Canyon.

A number of old underground missile silos in the area have been converted into geofront cities (ジオフロント都市), also called Silo Cities (サイロシティ).

Project Whiz Kid
During a journey along the Greater Canyon in October, the 37th Mobile Maintenance Battalion were involved in a battle with the Faith Organization's Fenrir due to a scheme which the Object's unit were carrying out in the silo city Giant Pizza.