memorial place for people, who died when climbing mt. everest, at thokla pass, nepal

4830 adventure altitude buddhism ceremony chorten climber climbers climbing danger dead destination died disaster dramatic dughla everest expedition extreme fallen flags freezing graveyard hiking himalaya himalayas history khumbu memorial memory mountain national nepal park pass past people place prayer remembrance respect rock sagarmatha stone stupa thokla traditional tranquil travel trek trekking tribute valley village when who