Colorado's largest city and state capital, Denver, is 5,280 feet above sea level. Leadville, at 10,430 feet in elevation, is the highest incorporated city in the United States as of 2015. Popular ski resorts Breckenridge, Telluride and Vail are at 9,602, 8,792 and 8,380 feet respectively. Steamboat Springs is 6,728 feet, Colorado Springs is 6,008, Littleton is 5,389 and Boulder is 5,344.
The average altitude in Colorado is 6,800 feet. The highest point in the state is Mount Elbert at 14,433 feet, and its lowest point, the Arikaree River, is 3,315 feet. The highest paved road in the United States is in Colorado, as are the tallest sand dunes and one of the world's highest auto tunnels and suspension bridges.
Colorado has the highest mean altitude of all the states, so visitors to the state may experience altitude sickness, notes Trip Advisor. The lack of moisture in the air can make people feel dizzy and nauseated, and they may experience nosebleeds. However, altitude sickness mostly occurs over 8,000 feet, so visitors to the capital should not be affected. Drinking plenty of water before visiting Colorado helps travelers acclimate to the higher elevation, and it is important to monitor alcohol intake, as its affects may feel stronger.