ATSF GP-7 No. 2687 at Walong Siding, Tehachapi Loop mccr83nfkduIUDN3nf3 5 years ago ATSF GP-7 No. 2687 at Walong Siding, Tehachapi Loop, July 1951. Photograph by Robert O. Hale Copyright 2020 Mount Lowe Preservation Society Inc. No unauthorized use or reproduction in any format.
