The grayscale view of the inner lobby of the Boulder Dam Hotel in Boulder City, Nevada. A variety of furniture can be seen in the room, along with a lighted fireplace. The hotel is located at 1305 Arizona Street.

The view of an unidentified building being constructed in Boulder City. In the background of the photo the Shell Station can be seen on the corner of Nevada Way and Arizona Street. The sign reads, "P. S. Webb General Contractor."

The back of the stamped postcard, received November 25, 1937 at 2 p.m.

Black and white photograph of the Aerotrain named "City of Las Vegas" arriving on its inaugural run from Los Angeles.

Black and white image of children standing outside of a cottage (similar to 450 others in the area) built by Six Companies, Inc. for their married employees in Boulder City. Many residents planted cactus and other shrubs indigenous to the area in their lawns.

Black and white image of a caravan of over 500 automobiles on their way to visit the Boulder Canyon Project in Boulder City. The passengers were possibly headed to view the diversion of the Colorado River. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

A view from a mountain looking down the canyon toward the Colorado River.