The Impossible Railroad, officially known as the San Diego and Arizona Eastern Railway, is a historic rail line that traverses challenging terrain in California and Arizona. Conceived in the early 20th century, the railway aimed to connect San Diego and Yuma, facilitating transportation and trade. The construction, however, proved exceptionally difficult due to rugged mountains, deep canyons, and the formidable Carrizo Gorge.

Construction commenced in 1907, facing numerous setbacks and earning the moniker “The Impossible Railroad” due to its seemingly insurmountable challenges. After overcoming financial struggles and natural obstacles, the line was completed in 1919. It played a crucial role in regional development, transporting goods and passengers. Despite its historical significance, the railway suffered from damages over the years, and portions were closed. Today, efforts are underway to restore and preserve this engineering marvel, showcasing the determination and ingenuity of those who endeavored to conquer the seemingly impossible.