Atlas of U.S. Historical Geography

Atlas of the Historical Geography of the United States

The Atlas of the Historical Geography of the United States was originally published in 1932 and was recently digitized and made available online by the Digital Scholarship Lab at The University of Richmond. 

There is an amazing array of historical info here. 

• Railroad expansion
• Native American History
• Politics thru the years
• Territorial Claims
• U.S. Military History
•  ... you name it!  

The Table of Contets is nicely organized and easily navigable
Atlas >

The never-ending quest for the perfect map

Pictured above: The Pivot Map

"Politics is driven to some extent by geographic issues..."

- English geographer and imperialist Halford Mackinder

From Ptolemy  to Google, interesting article on the evolution of maps.

Article >

How Close Do You Live to a Nuclear Reactor?

The U.S. has 104 operating nuclear reactors. 

Most are more than 30 years old...

Interactive map >

Journey Of Mankind - Interactive Map

Flash-authored map showing mankind's migration history

View Interactive Map >

Wind Simulation Mapping

A Trance-Inducing Simulation of All the Winds In the World

http://earth.nullschool.net/
amazing!

 More Info >

Also:

 U.S. Wind Map >

The Open Accessible Space Information System (OASIS)

Develop a better understanding of the NYC environment with a robust data-driven interactive map. Search for and view open spaces, property information, transportation networks and more,  all in one place. 

Interactive Map >

Geological Evolution

Pretty nicely done  - click to enlarge

(Can't find any more info on this masterpiece...)