Amboy is a small desert community in San Bernardino County, California, located along the historic U.S. Route 66 in the Mojave Desert. The settlement sits near Amboy Crater, a broad volcanic cinder cone rising from a largely open lava field. Its isolated location and surviving roadside structures provide a clear sense of the distances once traveled by motorists crossing the desert. Amboy is surrounded by sparse vegetation, dry lake beds, volcanic formations, and wide expanses of open desert, with the roadway serving as its principal connection to nearby communities.

Amboy’s identity is closely associated with Route 66 and the era of roadside travel. The Roy’s Motel and Café complex became the community’s best-known landmark, providing fuel, food, lodging, and automotive services for travelers crossing the Mojave. Although the town declined as newer highways redirected traffic, Roy’s remains an important reminder of the commercial network that once supported motorists along the route. The area also reflects the broader history of Mojave Desert transportation, with railroads, mining, military activity, and long-distance roads all contributing to the development of settlements across this arid region.

Amboy Crater is the area’s principal natural attraction and is part of the Mojave Trails National Monument. The volcanic cone rises from a lava field containing basalt formations, cinder deposits, and hardened flows, creating a landscape that differs sharply from the surrounding sandy desert. A hiking trail leads toward the crater and provides views across the volcanic field, although conditions can be extremely hot and exposed. Nearby Bristol Dry Lake is another prominent feature, with a vast salt-encrusted surface shaped by evaporation. Desert plants such as creosote bush, desert saltbush, and scattered cacti survive across the surrounding terrain.