are still easily located—hundreds of miles are still in service today, especially through the Sierra Nevada Mountains and canyons in Utah and Wyoming. While the original rail has long since been replaced because of age and wear, and the roadbed upgraded and repaired, the lines generally run on top of the original, handmade grade. Vista points on Interstate 80 through California's Truckee Canyon provide a panoramic view of many miles of the original Central Pacific line and of the snow sheds which made winter train travel safe and practical. In areas where the original line has been bypassed and abandoned, primarily because of the Lucin Cutoff re-route in Utah, the original road grade is still obvious, as are numerous cuts and fills, especially the Big Fill a few miles east of Promontory. The sweeping curve which connected to the east end of the Big Fill now passes a Thiokol rocket research and development facility. In 1957, Congress authorized the Golden Spike National Historic Site, which was redesignated the Golden Spike National Historical Park in 2019. Today the site features replica engines of Union Pacific No. 119 and Central Pacific Jupiter. The engines are fired up periodically by the National Park Service for the public. On May 10, 2006, on the anniversary of the driving of the spike, Utah announced that its state quarter design would be a representation of the driving of the Last Spike. Current passenger service Amtrak's California Zephyr, a daily passenger service from Emeryville, California (in the San Francisco Bay Area) to Chicago, uses the first transcontinental railroad from Sacramento to central Nevada. Because this rail line currently operates in a directional running setup across most of Nevada, the California Zephyr will switch to the Central Corridor at either Winnemucca or Wells. In popular culture The joining of the Union Pacific line with the Central Pacific line in May 1869 at Promontory Summit, Utah, was one of the major inspirations for French writer Jules Verne's book entitled Around the World in Eighty Days, published in 1873. While not exactly accurate, John Ford's 1924 silent movie The Iron Horse captures the fervent nationalism that drove public support for the project. Among the cooks serving the film's cast and crew between shots were some of the Chinese laborers who worked on the Central Pacific section of the railroad. The feat is depicted in various movies, including the 1939 film