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Air pollution qualifies as such. Surrounding mountains and high elevation above sea level contribute to a "cook pot effect", preventing air currents from blowing the smog away, and keeping it trapped in the Mexico City valley below.
Hills and mountains qualify as such. Both Santiago and Mexico City are surrounded by these, which act as a barrier, preventing strong winds to dissipate the air pollution.
In Mexico City the last snowfall was on January 12, 1967. Nonetheless, in the surrounding mountains it can snow every year during the winter months, January and February most likely.
On the coastal plains surrounding the Gulf of Mexico.
If driving south on highway 2 to highway 15 into Mexico City, you will pass through the Sierra Madre Mountains, which are also an extension of the Rocky Mountains.
No. Mexico city is within a valley, but it is not affected by any kind of rain-shadow effect.
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".
Hills and mountains.
It is the Seirra Madre Occidental Mountains that are in a direct line between San Diego, California and Mexico City, Mexico. A link can be found below to check facts and see a map.sierra madre Sierra Madre.Sierra Madre
Funny guy. Mexico City is surrounded by hills and mountains on both sides.
Paul Bunion
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".