Grand Canyon Watch Tower, Arizona. Photo by David Fisk. The Watchtower stands at the eastern end of the South Rim of the Grand Canyon. From a distance the building's silhouette looks like the Anasazi watchtower it was meant to mimic. Standing at 70 feet, with a 30-foot base, the tower was unique in having a concrete foundation and a steel framework well hidden in the stones of the tower. The ground level of the tower was a large, round observation room with a spectacular view of the Grand Canyon. Upstairs the Hopi Room presents paintings by Hopi artist Fred Kabotie, who took the room's theme from the Hopi Snake Dance. An outdoor observation deck is directly above the observation room.