what is a mountain range
A mountain range (mountain chain, mountain belt) is a geographic area with many mountains. A 'mountain system' or 'system of mountain ranges' includes geological features that are in the same region as a mountain range.Mountain ranges usually include highlands or mountain passes and valleys.Individual mountains in the same range do not always have the same geology or petrology.ountain ranges outside of these two systems include the Arctic Cordillera, the world's northernmost mountain system. If the definition of a mountain range includes underwater mountains, then the ocean ridges form the longest continuous mountain system on Earth, with a length of 65,000 kilometres (40,400 mi).