Welcome to the USGS - U.S. Geological Survey
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| Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment. |
| Department of the Interior,hazards,hazard,earth,USGS,U.S. Geological Survey,water,earthquakes, |
| World Rank: 1959 |
Age: ? years
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Result for U.S. Geological Survey
