3 ms·It's 3600 km, not miles. It's about as long as the Appalachian trail.by bonzini 9y agoIt's 3600 km, not miles. It's about as long as the Appalachian trail.bklaasen 9y agoDepends on the route you take, doesn't it?bonzini 9y agoOf course, but Google Maps gives exactly the value that the patent comment had, just in another unit of measure.