Cinematic 4K Timelapse high altitude mountain chain ridge time lapse two layers clouds movements blue cloudy sky snowy mountains landscape rocky rock cumulus white snow ice iced winter interstices mount slope inclination tilt incline gradient hillside brow shoulder brae tendency bias slant declivity spring sunny day air roof of the world wind breeze flatus blow blast bevel west east north pass south grey approaching highland landscape line lines. A mountain range or hill range is a series of mountains or hills ranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure and alignment that have arisen from the same cause, usually an orogeny. Mountain ranges Earth are the result of plate tectonics. Mountain ranges are usually segmented by highlands or mountain passes and valleys. Individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, and volcanic landforms resulting in a variety of rock types.