Front:
Arizona Spillway and Highway Bridge, Boulder Dam
IB-H2430
DESERT SOUVENIR SUPPLY
Back:
DHP
20
This giant concrete-lined spillway, with its
four floating hollow steel drum gates, is one
of the final flood control units of Boulder
Dam. It is large enough in all dimensions to
float the greatest battleship in the world.
DESERT SOUVENIR SUPPLY, BOULDER CITY, NEVADA
"C.T.ART-COLORTONE'' REG. U.S. PAT. OFF
