The geographic territory formerly known as Chicago, now the foundation upon which GLMZ was built.

Detroit, a sprawling industrial ruin and reclamation zone on the western shore of Lake Erie, with deep ties to the Great Lakes city-state network.

Freeport, a mid-lake floating colony east of Milwaukee, one of the major independent settlements on Lake Michigan.

Iron Ring, a deep-water floating colony east of Milwaukee, one of the more fortified and defensible settlements on Lake Michigan.

The Lake Huron Signal, an unexplained electromagnetic phenomenon detected in the waters of Lake Huron that has resisted all attempts at identification or exp…

The Ohio Corridor, a critical overland trade route connecting the Great Lakes city-states to the eastern seaboard remnants.

Thunder Bay, a remote northern settlement on Lake Superior's western shore, known for its isolation and the independent character of its inhabitants.