51.1 MB (51.0 MB compressed)
5163 x 3456 pixels
43.7 x 29.2 cm ⏐ 17.2 x 11.5 in (300dpi)
MARK WILLIAMSON / SCIENCE PHOTO LIBRARY MARK WILLIAMSON / SCIENCE PHOTO LIBRARY
Colorado River in canyon below Hoover Dam (the lower cofferdam). The bridge takes Interstate 93 past the dam; previously traffic passed across the dam itself.
Model release not required. Property release not required.