A higher elevation of 4,095米(13,435英尺) is often given, but this is not compatible with SRTM data, which shows no 3" cells higher than 4,027米(13,212英尺) or 1" cells higher than 4,029米(13,219英尺). A GPS reading of 13,200±50 feet (4024±16 m) has been reported. The elevation is subject to change due to volcanic activity.