Major John Wesley Powell makes the first recorded trip through the Grand ... Boulder Canyon Project Act. The Bureau of Reclamation opens bids for the construction of Boulder (Hoover) Dam and ...

The company also offers a popular Grand Canyon West tour that departs from Las Vegas. Take in views of Lake Mead, the Hoover Dam and the Colorado River on this small-group tour that's capped at 10 ...

Sitting about 35 miles southeast of Las Vegas, the Hoover Dam spans the Colorado River and the Black Canyon (which separates ... floor with a celestial map noting the dam's dedication date ...