Apologies for jumping in like this but can someone tell me where the Sierra Cascades are? Kinda got the idea it might be close to the Atlantic coast routes and could spice it up a bit. Or am I being an ignorant Brit about USA geography. Tried looking on Google Earth but nothing comes up.
Sorry if this disappoints you Tony, however, Sierra Cascades refers to the Cascade Mountains and the Sierra Nevada, along the western perimeter of the US (though inland, not coastal US). You can get a better idea if you download our Route Network Map (http://www.adventurecycling.org/routes/RouteNetwork.pdf) and see generally where the route is located.
I hope this helps.