Animations

(updated 21 January 2004)

Western Futures, 2003. Center of the American West, University of Colorado, Boulder. http://www.centerwest.org/futures/

The Sprawl Site. http://thesprawlsite.com/

Colorado Natural Diversity Information Source. Development patterns. http://www.ndis.nrel.colostate.edu/conservationcnty.asp?reg=nfr

County-level population growth for the US, from 1800 to 1999 (GIF)

Tract-level population growth for the US, from 1800 to 1999 (GIF)