04/23/2026
Colorado is famous for its sunshine, mountain views, and “Mile High City” nickname. But that mile-high elevation — 5,280 feet (1,609 meters) above sea level — can catch visitors by surprise. 😳
Signs and Symptoms to Watch For:
Most symptoms begin 6–24 hours after arrival. Common signs include:
🔹Headache (most common)
🔹Fatigue or unusual tiredness
🔹Dizziness or lightheadedness
🔹Shortness of breath with activity
🔹Nausea or loss of appetite
🔹Trouble sleeping
Get medical help if you notice:
🔹Severe shortness of breath, even at rest
🔹Confusion, trouble walking straight, or unusual clumsiness
🔹Persistent vomiting
🔹Blue lips or fingertips
Denver, Colorado, is famous for its sunshine, mountain views, and “Mile High City” nickname. But that mile-high elevation — 5,280 feet (1,609 meters) above ...