Well, the title to this thread is "photo sharing" so I hope it's OK to share someone else's photograph (via a link).
I'm a moderator for the Indiana Railfan Board, and one of the regular posters (from Evansville, IN) added this image over the weekend:
http://indianarailroads.org/board/index.php?action=dlattach;topic=2809.0;attach=8433;image
I thought is was pretty cool, so am sharing the URL!
And, JUST FOR FUN, I say the train has 72 cars in view. Other guesses?
RDS