This is the 1864 edition of Johnson's Mountains and Rivers Chart. This chart, printed in 1864, represents a significant reimagining and re-engraving of Johnson's pre-1864 mountains and rivers charts. Johnson first introduced a mountains and rivers chart in the second edition of his atlas, published in 1861. That chart, based on a related 1855 chart engraved by J. H. Colton, was very similar to other topical charts common in European atlases of the period in that it presented all of the great mountains and rivers of the world in a single panoramic view. Johnson, perhaps recognizing that the traditional chart, which necessarily highlighted the primacy of the great mountains and rivers of Asia, was difficult to read with regard to the regions that interested his constituent readers - North Americans and Europeans. Thus Johnson re-engraved his chart, taking the bold step of dividing the world's great mountains and rivers by continent. North America, still not fully explored when this map was published lists Mt. St. Elias, of the Canadian Yukon, as the highest mountain, followed by the Popocatepetl and Orizaba volcanoes of Mexico. This is in fact somewhat reversed from actuality, with Orizaba being the highest at 18,504 feet, followed by Elias at 18,009 feet, and Popocatepetl at 17,930. At this time, neither Mount McKinley (Denali) nor Mount Logan, the true highest peaks of North America, had been measured. Even so, Johnson does correctly recognized the Mississippi as the continent's longest river. Published by A. J. Johnson as plate nos. 2-3 for issue in the 1864 edition of Johnson's Family Atlas . Dated an copyrighted, 1864.