A landform is a natural feature of the earth's surface, shaped by forces like water, wind, ice, and volcanic activity over thousands or millions of years. Mountains, valleys, hills, plains, canyons, and islands are all landforms.

Understanding landforms helps explain why people live where they do and how civilizations developed. Ancient Egypt thrived along the Nile River valley, a landform that provided water and fertile soil. The Rocky Mountains, a massive landform stretching from Canada to New Mexico, shaped where early settlers could travel and build. The Grand Canyon, carved by the Colorado River over millions of years, is one of Earth's most spectacular landforms.

Landforms affect climate, agriculture, and transportation in important ways. Plains make excellent farmland, while mountain ranges block storms and create rain shadows. When geographers study an area, they start by examining its landforms because these features explain so much about the place.

Scientists called geologists study how landforms are created and changed over time by earthquakes, erosion, volcanic eruptions, and glaciers.