If anyone is looking for a Colorado Trail map set that provides better maps than the traditional Data Book, please consider Erik The Black's CT Atlas. I am not sponsored by Erik and I did not receive a free copy. I just REALLY like contour lines and a lighter map book. It's almost half the weight of the Data Book. There are obvious advantages/disadvantages to both, such as resupply info and water stops, but if you already know those things or have them saved in your phone - then you may not need them in a book.

Either way - another resource worth considering.

http://blackwoodspress.com/colorado-trail/maps/atlas/