Some members of the Greene Family who have the National Park Services concession at Wahweap Recreation Area near Lake Powell. They were gathered for the Powell Commemorative Ceremony. From left to right, the individuals are: Mrs. Bill Greene, Mrs. Art Greene, Art Greene, and Bill Greene.

Chairman Raymond Nakai of the Navajo Tribe looking North at the Rainbow Bridge near Lake Powell during the Powell Commemorative Ceremony.

Bill Diamond, professional river runner, portrays Major John Wesley Powell in an exhibit at the Powell Commemorative Ceremony at Lake Powell. Exhibit includes a boat that is representative of the type used by Powell in his expeditions. The sign positioned by the boat reads: "Early day boating through the canyons of the Colorado utilized heavy wooden boats like Powell's and like this one which was used between 1938 & 1942."

Unidentified men sitting underneath a tent at a railroad survey camp in Clark County, Nevada.

A distant view of wagons and teams used for railroad survey in Clark County, Nevada.

The black and white view of two, wide angled photographs of members of a railroad survey crew riding on a burro.