Colorado State Capitol 13th Step (Mile High marker)

A marker on the 13th step of the Colorado State Capitol building denotes the point that is one mile (5,280 feet) above sea level, a fact established by survey measurements. Visitors commonly pose on this step for photographs celebrating Denver’s “Mile High” nickname, and such images are frequently circulated in social media and memes about the city’s elevation. The Capitol and its Mile High marker are an established, documented tourist photo spot in downtown Denver.