Oklahoma and Colorado share a common border.
Colorado does not share a border with any foreign nation.
The two States of Sonora and Baja Caliifornia, Mexico share a border with the state of Arizona. California and Nevada share a border with Arizona that is marked by the Colorado River. Utah's southern border and Arizona's northern border are the same. New Mexico's western border and Ariizona's eastern border are the same and Arizona and Colorado share a border by touching each other at the Four Corners Monument.
They share a common border.
They share a common border.They share a common border.
They share a common border.
Kansas shares its borders with Colorado, Nebraska, Missouri, and Oklahoma.
They share a common border.
Only eastern Colorado since the two states share a common border.
Part of the Colorado state line is concurrent with the Kansas state line...
Kansas is on the direct East, Nebraska is on the Northeast, and a small sliver of Oklahoma is on the southeast.
They share a common border.