2007 Grand Canyon History Symposium Leigh J. Kuwanwisiwa, T. J. Ferguson and Michael Yeatts Kuwanwisiwa is Principal Investigator for Hopi in the Grand Canyon. Ferguson is an anthropologist who has worked as a researcher on Hopi projects in the Grand Canyon. Yeatts is an archaeologist who has worked as a researcher on Hopi projects in the Grand Canyon. Presentation Abstract... Öngtupqa: The Enduring Association of the Hopi People and the Grand Canyon:   The Hopi people know the Grand Canyon as Öngtupqa (Salt Canyon). Öngtupqa is a sacred place – home to ancestors who resided there in the ancient past, locus of shrines still revered in the Hopi religion, destination of an important salt pilgrimage, and the abode for Hopi people after death. The cultural importance of Öngtupqa is supplemented with a long history of Hopis working in the park as craftsmen in the Hopi House, artists in the Desert View Watch Tower, and workers in the service industry. For the last fifteen years the Hopi Cultural Preservation Office has conducted a series of research projects in the Grand Canyon to identify Hopi traditional cultural properties, document ethnobotanical and ethnozoological resources, and monitor the condition of Pisisvayu, the Colorado River. Much of this work, supported by the Bureau of Reclamation, Grand Canyon Research and Monitoring Center, and the National Park Service, is related to the role of the Hopi Tribe as a member of the Adaptive Management Work Group implemented following the completion of the Glen Canyon Environmental Impact Statement in 1995. In this illustrated presentation, we use the Hopi Tribe's research to explain the enduring cultural and historical importance of the Grand Canyon for the Hopi people.