Sierra Grade

I've just been looking through the set of photographs of the summit tunnel, the Chinese wall etc. ... fascinating.

Why was the line eventually shut down? It seems strange that it remained in use until 1993, surely if it was unsuitable for modern railway vehicles it would have been shut down alot earlier.

Those other photo's showing where the line used to run are very atmospheric as well.

Are the snowsheds you show in a few photographs modern?

—John van den Akker.