Mar 31, 2026 · Part of the U.S. Department of the Interior, the USGS began in 1879 to study the nation’s lands and resources. Today, we monitor, analyze, and predict Earth’s changing systems.

The U.S. Geological Survey (USGS) is the nation's largest water, earth, and biological science and civilian mapping agency. It collects, monitors, analyzes, and provides scientific understanding of …

In 2015, the USGS unveiled the topoView website, a new way to view their entire digitized collection of over 178,000 maps from 1884 to 2006. The site is an interactive map of the United States that allows …

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The USGS brings you a unique experience of listening to the sounds of Yellowstone, one of the most geologically active and diverse places on Earth.

58 km E of Pedro Bay, Alaska 2026-04-03 08:17:45 (UTC-07:00) 123.0 km

The provided maps are not for purchase or for download; they are to be used as a guide for reference and search purposes only; layers not owned or managed by the USGS may not reflect new naming …

Earthquake Photo Collections USGS and non-USGS collections of earthquake-related features and effects and shaking damage. Search Earthquake Catalog View historic seismicity, find past …

USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.