Frae Wikipedia, the free beuk o knawledge
The heichest elevation summit, Moont Everest, shawn wi a climber at the summit wearin an oxygen mask. The summit is 8850 m (29,035 ft) elevation. (While the cruisin altitude o jetliners is roughly 10,000 m (32,808 feet), thay are pressurised.)

A summit is a pynt on a surface that is heicher in elevation nor aw pynts immediately adjacent tae it.