Bill Diamond, professional river runner, portrays Major John Wesley Powell in an exhibit at the Powell Commemorative Ceremony on the shore of Lake Powell.

The unveiling of a plaque dedicated to the memory of Major John Wesley Powell at a Powell Commemorative Ceremony on Lake Powell. From left to right, the individuals identified are Governor Jack Williams of Arizona; Chairman Raymond Nakai of the Navajo Tribal Council; James R. Smith, Assistant Secretary of the Interior; and Governor Calvin L. Rampton of Utah. The plaque reads as follows: "Lake Powell; Major John Wesley Powell led scientific exploration parties down the Green and Colorado Rivers in 1869 and in 1871-72. Years later Powell became a leader in government science programs, headed the U. S. Geological Survey and the Bureau of American Ethnology, and advocated enlightened land and water conservation policies which resulted in the passage of the Reclamation Act of 1902. In commemoration of his courage, his wisdom, and his years of public service, the reservoir behind Glen Canyon Dam as been named Lake Powell."

People posing under Rainbow Bridge, one of the rock formations found around Lake Powell, during the Powell Commemorative Ceremony. The individuals identified include (standing, from left to right): Harold Mott; Raymond Nakai; Graham Holmes; Frank Kowski (Regional Director of National Park Services), and John Cook (of NPS). Kneeling, from left to right, are: Harthon "Spud" Bill and David L. Crandall.