The 4000 mile bike trail

Rails to Trails is a well proven concept already, but can they really link up a system that crosses the entire country?  The folks at The Great American Rail Trail say yes, and maybe even soon.  The proposed trail would add to several existing trail systems, offering "the experience of exploring America’s heritage, its potential, its beauty and bounty, its people and places" to more than 50 million people who already live within 50 miles of the proposed route.

US bike trail map