Middleton was, for many years, the primary base of operations for the Martian Manhunter.
Middleton is a large suburb of in the North West of Denver, Colorado. Nestled against the Rocky Mountains, it was settled in the 20s as a ski resort, but that failed to take off. The town did become renowned for its mountain vistas, which attracted artists and writers. The local commerce soon built around the arts and after World War II, it was expanded with some light industry. As more and more people from Denver settled because of the pleasant atmosphere and easy commute, the town quickly grew to around 100,000 inhabitants. In 1968, the town voted to be incorporated with Denver, which had grown towards its borders.