Home A violet 3-cent stamp issued on September 30, 1935, marked the completion of Boulder Dam (now Hoover Dam) A violet 3-cent stamp issued on September 30, 1935, marked the completion of Boulder Dam (now Hoover Dam)

A violet 3-cent stamp issued on September 30, 1935, marked the completion of Boulder Dam (now Hoover Dam)

A violet 3-cent stamp issued on September 30, 1935, marked the completion of Boulder Dam (now Hoover Dam)
Hoover dam without the bypass road.
Hoover Dam, USA