Plain is a large area of flat or gently rolling land. Plains often have few trees and wide open spaces. The land is usually even, which makes it easy to travel across. Some plains are covered with grass, while others may have farms or natural vegetation.

Plains are found on continents around the world, such as the Great Plains in North America and the Pampas in South America. They formed over long periods of time. Plains are often used by humans for farming and settlement. Many plants, animals, and communities live in these areas.