To avoid light pollution. Also the higher they are then there is less atmosphere to see through. Our atmosphere causes distortions and reduces visual definition.
Observatories are often located high up in the mountains because the elevation provides several advantages. Firstly, the thin and dry mountain air reduces atmospheric turbulence and light pollution, allowing for clearer observations. Secondly, being at higher altitudes helps to minimize the interference caused by Earth's atmosphere, especially for observations in the infrared and radio wavelengths. Lastly, mountains offer a stable platform for telescopes, minimizing vibrations from the ground and enhancing the precision of observations.
The observatories are located in mountains and highlands because those are the highest points on Earth. Scientists can see celestial objects more in focus when the telescopes are closer to the objects, in this case, higher up in elevation.
High up, high on the mountain...
it depends on what kind of weather it is on land like if it is hot on the land it is hot on the mountain. the mountain is not that high up.
I don't think there is a specific answer to that question but the highest mountain range in the world is The Himalayan Mountains which reach up to 24,000 feet high.
A mountain is a landform with high elevation and high relief. It typically rises conspicuously above its surroundings due to tectonic activity, erosion, or volcanic processes. Mountain ranges are made up of multiple peaks or summits clustered together.
high up on the cold mountain's, where no man will ever reach...
1000 feet up to walk to find pandas
Source
The high pressure of the mountains cause it to blow up
A mountain road is a twisty, usually narrow road which is high up in the mountains. A mountain pass is a road which crosses the mountains. Often, a mountain road leads to a pass, but not always.
High altitude vegetation is typically called "alpine", from the plants that grow high up in the Alps mountain range.