Mile High City

[AAllan at AOL.COM]

Though it's not an early citation, Paul Dickson's _Labels for Locals_ has
this reference:
>>A common commercial adjective in this "Mile-High City" is _mile-High_.
There are, according to one report, famous examples like Mile-High Stadium
and "enough other Mile-High (or -Hi) shops, parks, schools and churches to
fill four columns of the Denver telephone directory" (Washington Post, May
28, 1985).>>
- Allan Metcalf