Curiousrhino, I checked the numbers at the negatives and it was a 3 pictures prior to the negative of the sunset picture http://www.fotothing.com/senna3/photo/0180da25008415f3bba2cdd42f19ccb5/. So the above picture was presumably taken at the end of the afternoon. But the other Palmyra pictures, taken early in the afternoon (tagged palmx), show also this typical yellow stones!