Walpi (wäl`pē) [Hopi,=place of the gap], pueblo, NE Ariz., on a mesa NE of Flagstaff; founded c.1700. Its inhabitants are Pueblo who speak the Hopi language (Uto-Aztecan linguistic family). One of the most picturesque pueblos of the Southwest, it is a major tourist attraction. It was founded as a refuge in anticipation of Spanish retaliation for the Pueblo revolt (1680). The pueblo, however, is gradually being deserted for the new village of Polacca at the foot of the mesa.