here tis...
http://marine.geogarage.com/routes/
this is pretty coo..
Billy,
Thanks for this sight. I'm not sure how it works, yet. Maybe you have to become a member to get all of the benefits of the functionality of the site. I'll explore it.
You might find this one useful as well, if you live in Florida:
http://www.boatflorida.com/florida_waterways.html
Robert