Cadiz Summit dates back to 1883; it was named by Lewis Kingman, who was a locating engineer for the Atlantic and Pacific Railroad. It was one of a series of railroad stations built across the Mojave Desert (Amboy, Bristol, Cadiz, Danby, Esses, Fenner, Goffs, Homer, Ibis, Java, khartoum and so on). Back during those early years, Cadiz existed to supply water to the trains. And years later, when Route 66 was constructed, Cadiz served a similar purpose.