To see my facts/trivia resource and to learn more great things about Colorado check out 50.states.com.
Colorado contains 75% of the land area of the U.S. with an altitude over 10,000 feet. The United States federal government owns more than 1/3 of the land in Colorado. Colorado has 222 state wildlife areas.
The Dwight Eisenhower Memorial Tunnel between Clear Creek & Summit counties 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 26,000 vehicles.
The Colorado Rockies are part of the North American Cordillera, which stretches 3,000 miles from Alaska, through western Canada and the United States, into northern Mexico. The centerpieces of this dramatic uplift are the peaks over 14,000 feet, or "Fourteeners", as they are affectionately referred to by climbers. There are 52 Fourteeners in Colorado.
Mesa Verde features an elaborate four-story city carved in the cliffs by the Ancestral Pueblo people between 600 and 1300 A.D. The mystery surrounding this ancient cultural landmark is the sudden disappearance of the thousands of inhabitants who created the more than 4,000 identified structures. The Anasazi for example.
Some of the original inhabitants of Colorado are:
The Apache nation
The Arapaho nation
The Cheyenne nation
The Pueblo tribes
The Shoshone tribe
The Ute nation
Colorado is truly a beautiful place. Below is a preview of a video added by the Auaria Library in Denver, featuring some of the native tribes.