Montezuma County, Colorado: History
Montezuma County has been settled since approximately AD 600, and had an estimated population of approximately 100,000, four times its current population, in the 12th century. However, a series of events caused virtually all permanent settlements to be abandoned between 1200 and 1300, and the area was contested between nomadic Ute and Navajo bands until resettlement occurred in the 1870s. Montezuma County was created out of the western portion of La Plata County by the Colorado Legislature in April 1889. It was named in honor of Moctezuma II, who reigned as emperor of the Aztec Empire in Mexico during its decline at the hands of the Spanish invasion. The building ruins in Mesa Verde National Park were thought to be of Aztec origin at the time.