Tom Patterson’s latest project is a map of the physical features of the contiguous United States.

This map showcases physical features—mountains, plains, rivers, lakes, etc.—of the 48 contiguous US states. Map colors reflect natural environments across the continent from the forested east to the snowcapped Rockies to the desert southwest. You will also find a smattering of cities and faint state lines for reference.

Emphasis on smattering: there are only enough human features—cities and borders—to orient the reader; the focus is on bodies of water and landforms.

It’s freely available and in the public domain: it can be downloaded, shared and modified.