美国地质调查所(United States Geological Survey——USGS)是受美国内政部领导的一个政府地质工作部门,故又称联邦地质调查所。该所现有一万二千多名职工,每年完成3700多份专著、论文和报告,10000多份地质、地形和水文地质等图件。其工作成果对美国的经济建设和世界地质学的发展均有重要影响。因此,该所是美国最大最重要的地质工作机构。 The United States Geological Survey (USGS) is a government geology department under the leadership of the U.S. Department of the Interior and is also known as the Federal Geological Survey. The existing 12,000 workers and workers, each year completed more than 3700 monographs, papers and reports, more than 10,000 maps of geology, topography and hydrogeology. Its work has a significant impact on the economic construction of the United States and the development of world geology. Therefore, the institute is the largest and most important geological work organization in the United States.