Question: Coors Field sits in the Mile High City, but what marks the exact point of 5,280 feet above sea level inside the stadium?

Answer: Row 20 of the upper deck. Every seat in that row is purple instead of the standard green, creating a mile-high line that stretches from foul pole to foul pole. The playing field itself is lower, about 5,200 feet above sea level, because it was built roughly 21 feet below street level to meet city requirements.