Colorado Revised Statutes Title 31. Government Municipal § 31-23-101. Plats of cities and towns organized prior to 1885

In all cases in which a city or town was organized prior to March 31, 1885, in which lands embraced within the boundaries thereof have been conveyed or known by lots, blocks, streets, highways, parks, squares, or other divisions of land or in which any such lots, blocks, streets, highways, parks, squares, or other divisions of land have been known as such by reference to some previous plat or map, whether prepared or submitted in accordance with law or not, the owners of such lands, in order to determine the location and boundaries thereof, may cause a plat of the same to be filed in accordance with the provisions of this part 1.