Mobius divides up its land masses into areas called Zones. They have wildly divergent environments and sizes. Each Zone tends to be distinguished by its environment, dominated by one consistent landscape type, which is usually referenced in the Zone's name (e.g. "Dust Hill" is a stony wilderness; "Metropolis" is a city; "Chemical Plant" is an industrial region).
After the defeat of Doctor Robotnik, and following an abortive presidential election, it was decided on Sonic's prompting that every Zone would have its own local Zone Leader, rather than impose a new central government over the entire planet.
List of Zones
Many Zones were taken directly from the Sonic the Hedgehog video games, but a lot were then purposely designed for stories once the number of Sonic games became few and far between.
This list is currently alphabetical. It may need a new format and design.