New and Improved View of the Comparative Heights, of the Principal Mountains and Lengths of the Principal Rivers in the World. A groundbreaking convention establishing map of extreme scarcity, this is William Darton and W. R. Gardner’s 1823 comparative mountains and rivers of the world chart.

Featured on PDR in the collection Maps from Geographicus

In March 2011, Geographicus Rare Antique Maps, a specialist dealer in fine and rare antiquarian cartography and historic maps, donated their collection of over 2000 digital images to Wikimedia Commons. Here is just a small selection of a really great collection. Explore more, and help Wikimedia to categorise them, here. Each map shown below is linkable to the Wikimedia Commons page with more info about the map and higher resolution images. A huge thank you to Geographicus for sharing these amazing images!