Thersis World

Here I imagined a possible mid 1900 Atlas of the fictional world of Thersis beeing used for an exploration plan of the Aztlan Lands... I tried to give a modern but also a vintage feel.
The Thersis map represented is derived from the physical map of the World of Thersis I have been working on so farwich is an alternative Earthlike planet with some similarity to the Earth landmasses and environments.
The World of Thersis is slightly larger than the Earth and has slightly different mass but similar gravity, it has two moons and features a more recent Ice age.