I believe he is refering to the Amtrak 2004 wall calender, i have no idea which direction its going, we need a shadow analyst, or someone who knows the area!
I'll be going through there on December 26 and 30. I try to figure it out for you. But if your still planning on a trip through there, watch after Glorieta and before you get to Lamy and you can figure it out for yourself.