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  1. Mountain | Definition, Characteristics, Types, & Facts | Britannica

    6 days ago · Mountain ranges or chains extend tens to hundreds of kilometres in length. Individual mountains are connected by ridges and separated by valleys. Within many mountain belts are …

  2. mountain - Students | Britannica Kids | Homework Help

    Although most mountain chains share certain common features, mountains can be broadly grouped into five specific types: fold, fault-block, volcanic, dome, and plateau mountains.

  3. How Are Mountains Formed? | Processes, Types, Examples, & Facts ...

    Dec 7, 2025 · Several processes create mountains, including the convergence of tectonic plates, volcanic activity caused by subduction, and block faulting.

  4. List of mountains | Britannica

    Climbing each continent’s highest mountain is a major mountaineering achievement. Read this list to learn more about the peaks known as the Seven Summits, plus one.

  5. Physical features and formation of mountains | Britannica

    Mountains are considered larger than hills, but the term has no standardized geologic meaning. Mountains are formed by the folding, faulting, or upwarping of the Earth’s surface due to the …

  6. Mountain - Tectonics, Creation, Destruction | Britannica

    6 days ago · As noted above, individual mountains, mountain ranges, mountain belts, and plateaus exist because tectonic processes have elevated terrains faster than erosion could destroy them.

  7. Definition, Geography, Landform, Types, & Examples - Britannica

    The formation of a plateau requires one of the same three types of tectonic processes that create mountain ranges— volcanism, crustal shortening (by the thrusting of one block or slice of crust over …

  8. Mountain - Major mountain belts of the world | Britannica

    6 days ago · Although isolated mountains and mountainous terrains exist on all continents, most mountain belts not part of either the Circum-Pacific or the Alpine-Himalayan systems either are …

  9. mountain - Kids | Britannica Kids | Homework Help

    Introduction A mountain is a landform that rises high above its surroundings. Taller than a hill, it usually has steep slopes and a rounded or sharp peak. Mountains are rarely found alone. Groups of …

  10. Valley | Definition, Characteristics, Examples, & Facts | Britannica

    Nov 6, 2025 · Valleys are most commonly drained by rivers and may occur in a relatively flat plain or between ranges of hills or mountains. Those valleys produced by tectonic action are called rift valleys.