After a brief rain shower, a slight hint of a rainbow appears over Eastern Idaho power WAMX 5005 (original Chicago Northwestern) and WAMX 4039 (original Chessie) in the EIRR Yard in Twin Falls.
Not sure what this is, but it has seen better days! It carries the number CP 19 on the other end. Seen at the Eastern Idaho RR point at Twin Falls, ID. WAMX 3922 is also present.