I found this site on the www the other day. Looks very cool. Only one Texas ride on there though. Come on GPS users lets load some favorite rides up there! You can upload .gpx files from gps units up there or manually create your own right on the website. They are there for others to view, download to their gps units, or print to ride it the stone age way
as well as using you other's maps yourself.
Check it out!
http://www.motowhere.com