 On January 1, 1861, the Act Admitting the State of Kansas to the Union defined the western boundary of the new state as the 25th meridian of longitude west from Washington.This rendered the western portion of the Territory of Kansas unorganized.Thirty days later on February 28, 1861, the Act Organizing the Territory of Colorado defined the eastern boundary of the new territory as the 25th meridian of longitude west from Washington.