Denver
I believe that Denver Colorado is called the Mile High City.
Denver is nicknamed the mile-high city because its elevation is 5,280 feet.
Denver Colorado is known as the Mile High City.
Denver, Colorado, USA is known as the Mile High City.
Denver is The Mile High City because it's elevation is one mile above sea level.
Denver is called the mile high city because the 13th step of the State Capitol Building in downtown is exactly 5,280 feet, a mile high.
Its official elevation is exactly one mile above sea level.
Denver's nickname is the "Mile high city' because it is a mile above sea level.
Denver
The mile high city is Denver, Colorado.
A state cannot be known as a city. This is the equivalent to asking, "what guitar is the best organ" Anyways, the mile high city -- Denver, is in the state of Oregon. Anyone who studied American geography up until age 4 would know that one.
5,280 feet + 1 mile. Denver is the mile high city.