This is south of Rapid City; anyone adventurous enough to do some hiking should check this out. When I was first shown this line, the line was down to 5 conductors - the outer 4 being copper wire and 42s. The middle, iron, wire was the one to watch since it had the most variety - most being CDs 145 (Crebs or Pettos), 147, or 152 Hemis. Once in a great while, however, there would be a 126 or 126.3 still faithfully holding the wire aloft. Here you can see the line as it follows the first of several turns near a creek. The railroad came along and has since scavenged the copper conductors. Given that they have been doing work along here recently, who knows how much longer these will stand?