Lonely Planet
Riding the California Zephyr
The Amtrak route between the San Francisco Bay area to Chicago shows a diverse cross-section of the nation that you won
Orchid festival mentioned by passengers

“San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 200,000 or more, San Francisco is ranked first by per capita…”