Colorado Mapology
Erl H. Ellis, Jende Hagen, Frederick Colorado, 1983, 129 of 400 copies signed by the author. 256 pages A classic for the state and its evolution. The one reference you need for Colorado mapping and its history (aside from Mahoneys Historical Atlas of Colorado). These are not common A strong suggestion for any Colorado collector.
and the condition is very good, and includes the original bill of sale.
