Definition of Mountain

What is a Mountain?

A mountain is an elevated portion of the Earth’s crust, generally with steep sides that show significant exposed bedrock.

Mountains are prominent landforms that stand significantly above sea level and the surrounding land. Mountains are usually 600 m in height or more, they exist alone with steep slopes and show distinct peaks or they may be spread extensively as seen in a mountain range.

Mountains form when two continental plates collide. Since both plates have a similar thickness and weight, neither sinks under the other. Instead, they crumple and fold until the rocks are forced upwards forming a mountain. As the plates continue to collide, mountains get taller.

Mountains are categorized according to their mode of formation, as a result, there are four main types of mountains;

1. Fold Mountains.
2. Block Mountains.
3. Volcanic Mountains.
4. Residual Mountains.

Note: Landforms with elevations less than 600 m are called Hills. Mountains could be worn down to form hills. Hills may also be eroded to form plains.