Steam engines continued to operate on mainline service until 1971, and the workshops were where all major maintenance occurred.

Otherwise, few modifications were needed to insure years of mainline service.

This meant that Wendover is now only served by mainline services.

They operated throughout throughout mainline services across the state.

This locomotive was never used on mainline service.

Passenger service ended on the branch in 1925, though some mainline service continued to stop.

It was the first North American railway to use diesels in mainline service.

Blue lines: Track used by mainline services only, not electrified.

As of 2013, members of the class are still in mainline service despite some being 50 years old.

Since 1970s the older (southern) pair of tracks is used by suburban trains, the other by mainline services.