The city sits in a valley surrounded by mountains. Smog from manufacturing and chemical plants as well as vehicle exhaust fumes get trapped by the surrounding mountains due to lack of any powerful-enough winds. This makes up the layer of gloom that sits over the valley due to a "cook-pot effect".
It is in the south-center of Mexico. See the related links for such location in a Map.
It is to the north-east of Mexico City.
Tenochtitlan, founded in 1325 on the location of present-day Mexico City.
mexico city
Mexico City RETARDS
Yes, but the actual location is known as Mexico City.
Overpopulation.
The Aztecs were in central Mexico and the Inca were in Peru.
They were located in what is now Mexico 50 miles north of present-day Mexico-City.
Primarily in and around Mexico City.
Geography.
In central Mexico, on the Texcoco Valley, Specifically, in and around various islands in the Lake Texcoco. The city was Tenochtitlan, and is the location of present-day Mexico City.