Named after local sheep rancher Adam Hanna, it was established in 1896, and had a post office until 1969. It was a railroad stop and a ranching settlement, once known as the "Gateway to the Painted Desert." At its peak, Adamana had about 30 families, a post office, a school, and a store. When a gas plant was established in Adamana and the new Interstate 40 passed it by, the residents began to leave. The hotel burned down in 1965, destroying some irreplaceable treasures such as the hotel register, which was signed by such people as Theodore Roosevelt and a king of Spain.
Today, all that remains in Adamana are three buildings and a mobile home.