This report of accomplishments of the U.S. Geological Survey in Alaska during 1980 contains summary and topical accounts of results of studies in a wide range of topics of economic and scientific interest. In addition, many more detailed maps and reports are included in the lists of references cited for each article and in the appended compilations of 297 reports on Alaska published by the U.S. Geological Survey and of 177 reports by U.S. Geological Survey authors in various other scientific publications.