Geographic features with which the mountains border.

Mountains can border on various natural geographic features, these can be mountain rivers. There are also cases when mountain ranges border on various types of forests, be they tropical, coniferous or deciduous. In the regions of Southeast Asia and Indonesia, it is a common phenomenon when mountain ranges have common borders with the coast of the Indian and Pacific Oceans. If you look deep into the continents, then most often the mountains border on plains, steppes, deserts and semi-deserts.