The Amtrak Coast Starlight runs between Los Angeles and Seattle through some beautiful scenery. Amtrak calls it "A Grand West Coast Train Adventure"

http://www.amtrak.com/coast-starlight-train) -

"En route daily between Los Angeles and Seattle, the Coast Starlight train passes through the San Francisco Bay Area, Santa Barbara, Sacramento and Portland. Widely regarded as one of the most spectacular of all train routes, the Coast Starlight links the greatest cities on the West Coast.

The scenery along the Coast Starlight route is unsurpassed. The dramatic snow-covered peaks of the Cascade Range and Mount Shasta, lush forests, fertile valleys and long stretches of Pacific Ocean shoreline provide a stunning backdrop for your journey."