California Zephyr

The California Zephyr is more than a train ride — it is a 51-hour moving panorama through the American West. Departing daily from Chicago Union Station, the train crosses the vast agricultural plains of Iowa and Nebraska before beginning its dramatic ascent into the Colorado Rockies. The stretch along the Colorado River between Glenwood Springs and Grand Junction is widely considered one of the most beautiful rail corridors in the world, with sheer canyon walls rising hundreds of meters on either side of the tracks.

After crossing the Utah desert and briefly touching Nevada, the Zephyr begins its final mountain crossing through the Sierra Nevada, following the historic route of the first transcontinental railroad over Donner Pass. The descent into the Sacramento Valley and the final approach to Emeryville offer sweeping views of the California landscape.

The train features Coach class, Roomette, and Bedroom accommodations. The Sightseer Lounge car, with its floor-to-ceiling windows, is the social heart of the journey. Amtrak's dining car serves three meals a day with views that no restaurant on earth can match.

The California Zephyr is considered iconic for several reasons. It traverses six US states and three major mountain ranges. The 238-mile stretch along the Colorado River is inaccessible by road — the train is the only way to see these canyons. The route follows the path of the original California Zephyr (1949-1970), which was itself considered the most beautiful train in America. Today, it consistently ranks as Amtrak's most scenic and most popular long-distance route, carrying over 400,000 passengers annually.

Expect a slow, immersive experience. The train averages only 77 km/h, and delays of 1-3 hours are common due to freight traffic priority. But nobody rides the Zephyr for speed. The Sightseer Lounge car fills up early in the morning as passengers claim their spots for the day's mountain scenery. Conversations with fellow travelers are part of the experience — the lounge has a communal, almost festive atmosphere during the scenic highlights. At night, the sleeper cars offer a surprisingly comfortable rest, and waking up to a new landscape outside your window is one of rail travel's greatest pleasures.

The original California Zephyr was launched on March 20, 1949, as a joint service of the Chicago, Burlington & Quincy Railroad, the Denver & Rio Grande Western Railroad, and the Western Pacific Railroad. It was marketed as "The Most Beautiful Train in America" and featured Vista Dome cars — pioneering glass-topped observation cars that gave passengers panoramic views of the mountains.

The original service was discontinued on March 22, 1970, due to declining ridership and mounting financial losses. When Amtrak took over most US passenger rail service in 1971, it initially ran a similar route called the San Francisco Zephyr. The California Zephyr name was restored in 1983 when Amtrak rerouted the train through its current path via Denver and the Moffat Tunnel.

The Moffat Tunnel is the engineering centerpiece of the route. Completed in 1928, this 10-km tunnel bores through the Continental Divide at an elevation of 2,816 meters, eliminating the need to cross the treacherous Rollins Pass. The tunnel took 6 years to build and was one of the most ambitious railroad projects of its era.

The Donner Pass crossing in the Sierra Nevada is equally remarkable. The original Central Pacific Railroad blasted 15 tunnels through solid granite in the 1860s, largely built by Chinese laborers under extremely dangerous conditions. Today's route uses the longer but less steep Donner Pass tunnels, though remnants of the original line are still visible from the train.

September and October offer the best combination of clear skies, fall colors, and manageable temperatures. The Colorado aspens turn gold in late September, creating a spectacular backdrop for the canyon passage. Summer (June-August) offers the longest daylight hours, meaning you see more scenery, but the train is at its most crowded. Winter crossings through the Rockies and Sierra Nevada can be dramatic with snow-covered peaks, but delays are more frequent due to weather.

Book a westbound departure to see the Colorado Rockies and Sierra Nevada in daylight — the eastbound timing puts you through the best scenery at night. Reserve the Sightseer Lounge early in the morning for the Colorado River canyon stretch (roughly 9 AM - 2 PM on day two). Bring snacks and a refillable water bottle. If budget allows, a Roomette is worth the upgrade for the privacy, included meals, and the experience of sleeping on a train. Download the Amtrak app for real-time GPS tracking and mile-by-mile commentary.