California commerce By Angela Cotey | October 3, 2024 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates The Southern Pacific had large trailer-on-flatcar ramps in San Francisco and Los Angeles. Multiple trains could be loaded and unloaded at the same time. This view is from the early 1960s. Southern Pacific photo Share this article Print Facebook