U.S. Geological Survey (USGS)Created by an act of Congress in 1879, the U.S. Geological Survey (USGS) is the sole science agency for the Department of the Interior. The USGS monitors, analyzes, and predicts current and evolving Earth-system interactions and delivers actionable information at scales and timeframes relevant to decision makers. The USGS provides science about natural hazards, natural resources, ecosystems and environmental health, and the effects of climate and land-use change.