I'd imagine (on the basis of common sense, rather than evidence, so I may well be wrong), that there should be rail facilities fairly close to any major port.
Trucking from the railhead is probably unavoidable, but the article talks about a 1000mi trip, whereas according to wikipedia at least, greatest distance across the 48 states is 2800mi. Surely the nearest freight depot should be less than 1/3 of the country away?