An $86.7 million purification plant could see 56,000 acre-feet of Colorado River water left behind Lake Mead over the next decade.

From the top of Hoover Dam, the Colorado River looks suitably ... for when heavy snowfall in the Rockies makes for high water levels. Some of the concrete, poured several decades ago, is still ...

plus a tunnel drilled in the 1930s and a platform that sits on top of a 30-foot-wide water pipe. Both on-site guided tours include stops inside the power plant, but only the Hoover Dam Tour offers ...

THE completion, just announced, of the great concrete structure originally known as the Boulder Dam, but afterwards officially designated the Hoover Dam ... the flood water of the Colorado ...