Mayor Michael Hancock likes to refer to the area along the the University of Colorado A-Line train route in north and east Denver as the “Corridor of Opportunity.” With a high concentration of undeveloped land there, Hancock and city officials believe the spaces along the 22.8 miles of RTD track connecting downtown and Denver International Airport represent one of the best commercial investments opportunities in the world. Related ArticlesApril 21, 2016 Denver group is a major player behind the scenes in affordable housing June 16, 2015 Denver’s River North real estate market in “feeding frenzy” September 20, 2016 Denver to developers: Want to build higher?