why do broncos have 5280 on their helmets

The Denver Broncos have the number "5280" on their helmets to represent the elevation of Denver, Colorado, which is exactly 5,280 feet above sea level. This number symbolizes Denver's nickname as the "Mile High City" because the city is one mile high in altitude. The "5280" is a tribute to the city's unique geography and serves as a symbol of local pride, highlighting the Broncos' connection to their hometown and the home-field advantage given by Denver's high altitude. This number was introduced as part of the Broncos' 2024 "Mile High Collection" uniforms and helmets, emphasizing their roots and the distinctive environment of their home city.