As one of the four main types of landforms, mountains can rise to massive heights. In particular, Mount Everest has the greatest elevation above sea level in the world at 29,000 feet, making the climb ...

In terms of general cruising altitude, the California Aeronautical University reports that a jet airliner will typically cruise at an altitude of up to 42,000 feet. For an Airbus A320 and A321, for ...

Nepal's airlines have halted helicopter flights to the Everest region after locals angry at the environmental impact and loss of income from trekkers threatened landing sites, aviation officials said ...