A geographical feature is something that exists at a moderate to global scale at a location in the space and scale of relevance to geography, at or near the surface of Earth. It is an item of geographic information and may be represented in maps, geographic information systems, remote sensing imagery, statistics, and other forms of geographic discourse. Geographical features can be classified as locations, sites, areas, or regions. They can be made by either forces of nature or man and include large and small structures, such as mountains, plains, deserts, oceans, rivers, valleys, canyons, and beaches. Geographical features are discrete, meaning that they have a clear identity and location distinct from other objects, and are defined as a whole, defined more or less precisely by the boundary of their geographical extent.