A map of the Colorado counties as they appeared between 1988 (when Denver annexed the airport) and 2001 (when Broomfield county was created).
Original work by <a href="//commons.wikimedia.org/wiki/User:Awmcphee" title="User:Awmcphee">User:Awmcphee</a>. This version by <a href="//commons.wikimedia.org/w/index.php?title=User:WallAdhesion&amp;action=edit&amp;redlink=1" class="new" title="User:WallAdhesion (page does not exist)">User:WallAdhesion</a>.
2021-03-25
Based on the version from 17 December 2022 of <a href="//commons.wikimedia.org/wiki/File:Colorado_county_map,_cb_500k.svg" title="File:Colorado county map, cb 500k.svg">File:Colorado county map, cb 500k.svg</a>. Redrawn county lines informed by <a rel="nofollow" class="external text" href="https://digital.newberry.org/ahcb/map/map.html#CO">The Newberry Library</a>.