The Christmas Tree Ruin is an archaeological site containing a Navajo pueblito, a defensive structure built in a high cliff wall approximately 200 feet above the floor of Gobernador Canyon in northwestern New Mexico, USA. The ruin, which is believed to have been built by the Navajo, dates to the 18th century, and was probably used for defensive, storage, and habitation purposes.The site is situated on a ledge and within a rock shelter.