A bright patch of yarn ripped from a garment by a rusty barbed wire fence blows in the wind. I found this in what had become one of my favorite image-hunting grounds along the border: a lonely dirt ribbon called Ruby Road. As the activities of the National Guard and Border Patrol have cut crossing activity by a tremendous amount, I am left to ponder the evidence of past crossings. I found that these artifacts transmitted vast amounts of information about the people migrating north.