Oro County, one of the extinct counties of Kansas, was created Feb. 7, 1859, by the territorial legislature, and was bounded as follows: Commencing at the northeast corner of Montana county, thence running clue east to the 104th meridian of longitude, thence due south to a point 20 miles south of the 39th parallel of latitude, thence due west to a point 20 miles east of the 105th meridian of longitude, thence due north to the place of beginning." The act also provided that D. Newcomb, William J. King and George McGee should constitute a board of commissioners to locate the seat of justice near the center of the county. Oro county is now a part of the State of Colorado.