inside the canyon wall beside Hoover Dam

The dam is about 250m tall

there are 4 of these water intake towers for the generators

convenient !

dust storm in the distant on the way back to Las Vegas

the small whitish shield area in the middle is at the end of the circular tunnel and from where i took photo (below) looking up to top of dam

turbine hall with generators (there are 2 of these halls, one of each side of dam)

access passageways within dam; surrounded by millions of tons of concrete

held camera outside vent at end of passageway below in next photo

internal 250m staircase from top to bottom of dam; it is a long way to fall if you trip

view from top of dam; the bridge took 7 years to build and opened in 2010; the dam took 5 years to build in 1930s