Just east of the Hoover Dam on U.S. 93, Tom Zwart, of Henderson, Nv., takes a photograph of the Colorado River Bridge as the bridge's arch nears completion. Zwart has been documenting the progress of its construction for the past one and a half years. The nearly 2000 ft long bridge is part of the Hoover Dam Bypass project and is scheduled to be completed in late 2010.

Hoover Dam, Boulder City, NV

Grand Canyon, Arizona

Grand Canyon, Arizona

A rainbow at sundown outside Prescott, AZ