The southwestern corner monument of the Territory of Colorado later became the common boundary point of the U.S. states of Colorado, New Mexico, Arizona, and Utah known as the Four Corners.
Colorado, Wyoming, and Utah are the only three U.S. states with no natural boundaries.
Although Colorado and Wyoming have the same shape and both measure four degrees of latitude by seven degrees of longitude, Colorado is 6.42% more extensive than Wyoming because it lies closer to the equator.
