The Dwight Eisenhower Memorial Tunnel between Clear Creek & Summit counties in Colorado is the highest auto tunnel in the world. Bored at an elevation of 11,000 feet under the Continental Divide it is 8,960 feet long and the average daily traffic exceeds
•
Colorado's first and oldest military post, Fort Garland was established in 1858 and commanded by the legendary frontiersman Kit Carson.
•
Denver, Colorado lays claim to the invention of the cheeseburger. The trademark for the name Cheeseburger was awarded in 1935 to Louis Ballast.