Interstate 40 (I-40) is one of the nation's longest and most significant east–west routes, stretching over 2,500 miles from Barstow, California, to Wilmington, North Carolina. Traversing eight states, I-40 serves as a major commercial artery and scenic cross-country corridor, paralleling historic U.S. Route 66 for much of its western half. The highway plays a critical role in both freight movement and tourism, connecting major cities including Oklahoma City, Little Rock, Memphis, Nashville, and Knoxville.
The western segment of I-40 offers travelers expansive desert landscapes and cultural landmarks, from the Mojave Desert to the Petrified Forest and Albuquerque’s high desert basin. As it moves eastward, the terrain shifts dramatically—from the high plains of Texas and rolling hills of Arkansas to the lush river valleys of Tennessee. I-40 crosses several major interstates, including I-5, I-25, I-35, I-55, and I-75, making it a vital junction point for north–south connections as well.
Notable challenges along I-40 include seasonal weather hazards, especially winter storms in the high elevations of Arizona and severe storms in the Midwest and Southeast. Despite these conditions, I-40 remains a preferred route for coast-to-coast travel due to its relatively direct alignment, robust infrastructure, and diverse roadside attractions. Whether you're a long-haul trucker, road-tripper, or history buff following the path of Route 66, Interstate 40 offers a compelling and essential journey across the American landscape.
![Interstate 40: Needles to Barstow, California [Remastered]](https://media.openroadarchive.com/file/ora-media/uploads/2026/05/glorrw4-y0wmaxresdefault.webp)
Drive west across California’s Mojave Desert on Interstate 40 from Needles to Barstow, following a historic Route 66 corridor through remote basins, rugged mountains, railroad towns, and vast desert landscapes on one of Southern California’s classic interstate drives.
Drive 55 miles west on Interstate 40 from Kingman, Arizona to Needles, California, descending through remote desert terrain toward the Colorado River and Mojave Desert.
Experience the changing landscapes of northern Arizona on Interstate 40 from Flagstaff to Ash Fork. This 52-mile drive transitions from cool pine forests beneath the San Francisco Peaks to the wide-open high desert plateau, following a historic Route 66 corridor through one of the Southwest’s most dynamic regions.
Drive Interstate 40 from Winslow to Flagstaff, Arizona, covering 62 miles of dramatic elevation change from open high desert to dense ponderosa pine forest. Experience historic Route 66 parallels, Meteor Crater access, and one of Arizona’s most striking landscape transitions.
Drive Interstate 40 from Holbrook to Winslow, Arizona, crossing 29 miles of open high desert and historic Route 66 territory. Experience expansive landscapes, quiet desert beauty, and classic Southwest travel history along this scenic stretch of I-40.
Drive Interstate 40 from Lupton to Holbrook, Arizona, covering 69 miles of high desert, historic Route 66 alignments, mesas, and Painted Desert landscapes across northeastern Arizona.
Drive Interstate 40 from Gallup to Lupton, New Mexico, covering 16.5 miles of high desert terrain along historic Route 66. Experience red rock landscapes, wide-open vistas, and a scenic transition into Arizona on this short but iconic Southwest drive.
Drive Interstate 40 from Albuquerque to Gallup, New Mexico — a 123-mile journey through high desert mesas, volcanic landscapes, and historic Route 66 country. Experience sweeping Southwest scenery, lava fields near Grants, and the rugged beauty leading to Gallup.
Drive 61 miles west along Interstate 40 from Clines Corners to Albuquerque, New Mexico. This scenic high-desert journey crosses the Estancia Basin before approaching the Sandia Mountains and the Rio Grande corridor.
Drive 54 miles west on Interstate 40 from Santa Rosa to Clines Corners, New Mexico, crossing wide-open high desert plains, historic travel corridors, and one of the Southwest’s classic crossroads along I-40.
Drive 52 miles west on Interstate 40 from Tucumcari to Santa Rosa, New Mexico, across wide-open High Plains, historic Route 66 alignments, sandstone mesas, and the Pecos River valley. Experience classic eastern New Mexico landscapes and roadside history along this scenic stretch of I-40.
Drive 37 miles west on Interstate 40 from Glenrio to Tucumcari, New Mexico. Experience wide-open High Plains, historic Route 66 parallels, Tucumcari Mountain views, and classic neon Americana along this scenic desert interstate segment.