A uniformed guide explains an earthquake detector (lower right) to a tour group in an inspection tunnel at Hoover Dam.
A uniformed guide explains an earthquake detector (lower right) to a tour group in an inspection tunnel at Hoover Dam on the Colorado River.
Size: 2912px × 4368px
Location: Colorado River Nevada USA
Photo credit: © Marmaduke St. John / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: america, american, caucasian, cluster, colorado, dam, dams, detector, direct, directing, earthquake, electric, electrical, equipment, explain, explaining, explanation, group, grouping, groupings, groups, guidance, guide, guides, guiding, hoover, hydroelectric, indoors, inspect, inspecting, inspection, lead, leading, led, listen, listening, nevada, plant, plants, power, reservoir, reservoirs, river, speaker, speaking, technology, tour, touring, tourists, travel, tunnel, tunnels, uniform, usa, vacation, vertical, workmen, young
