[charlene]

http://books.google.ca/books?id=dNGr...sult#PPA155,M1

and article about Google Earth/Shelton
http://www.mountaincartography.org/p...03_Drachal.pdf

http://hansvandermaarel.wordpress.co...-of-the-world/

http://www.reliefshading.com/

very interesting stuff! it certainly would have made my old geography classes much more interesting!