Art Source International is proud to offer this reproduction map from 1849. This is the first separate issue edition of Colton’s famous mountains and rivers map which went through many later editions in Colton’s world atlases.  These maps have the signature 3/4″ Colton border surrounding each map. The Colton firm refused to compromise quality, choosing to compete for sales in the finer quality international market rather than the inexpensive domestic one. Because of this, all maps were engraved by steel plates rather than by wax engraving which was the most common method used at this time. ‘