How Places End
The process through which a place ceases to exist within official systems of recognition, classification, or governance, even if it remains physically present.

How Places Disappear (Without Disaster)
Most places do not disappear because of sudden catastrophe. They disappear gradually.
The process through which the systems that support a place are reduced, removed, or allowed to degrade without replacement.
The process through which a place is allowed to reduce in function, population, or importance without intervention to preserve its previous role.