The United States Geological Survey (USGS) is the scientific agency of the United States government that studies the natural features of the United States, like lands, rivers, mountains, and lakes. They measure and map these features, and also study the plants, animals, and minerals that make up the environment. The USGS also studies things like earthquakes, floods, landslides, and droughts, so that people and businesses can be prepared for any potential hazards. The USGS provides information to the government, businesses, and the public about the natural world, so everyone can make informed decisions about how to protect and use the land.