AT&SF and SP joint line?

Can anyone tell me where AT&SF and SP may have shared a joint line back in the 60’s or 70’s?

Jerry

They both owned the Sunset Railway near Bakersfield, and took 5 year turns operating it.

Tehachapi is the only place I can think of. SP and ATSF also once jointly owned the Northwestern Pacific but I think that was earlier then the 60s.

NWP was strictly an SP subsidiary.

ATSF owned half of the NWP until 1929.

Nope, not to start with.

Goodyear District in LA (If a railroad needed gone, that one did)