MountainTownTrails.com is a website where cyclists can download GPS tracks and maps, mostly for the Rocky Mountains area. Here is a link to the article:

http://www.rockymountainnews.com/drmn/sports/article/0,1299,DRMN_2_4017135,00.html

And a link to the MountainTownTrails.com website:

http://mountaintowntrails.com/