Cumbres & Toltec Scenic RR
In the third picture here, one can see a sharp delineation of color
approximately in the center of the picture. This turns out to have
been the border beween Colorado and New Mexico, and is not
a case of being a modified/retouched image. It was unusual enough
to merit the picture. As to how it could happen, the most likely
explanation is that this was due to the land being used for grazing,
with the land on the right hand side having been used more than the
land on the left.
