Surveyors taking high precision differential GPS data for heights at Grand Canyon, Arizona

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Size: 4244px × 6360px
Location: Grand Canyon National Park South Rim Arizona United States of America
Photo credit: © Charles Stirling (Travel) / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, american, arizona, canyon, coconino, colorado, county, digital, equipment, fieldwork, geodesy, geographical, gps, grand, instrument, men, outdoors, river, survey, surveying, surveyor, surveyors, terrain, topography, usa