78808
During its flight test programme , the prototype demonstrated its high altitude capabilities on several occasions ; in June 1959 , it landed at an altitude of over 4,000 meters in the Mont Blanc mountain range and , during October 1960 , it was able to achieve the same feat at an altitude in excess of 6,000 meters in the Himalayas .
 Mont Blanc, Himalayas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Mont Blanc, Himalayas