scenic high altitude alpine tibetan landscape and an observatory near bum la pass

1962 alpine altitude arid army arunachal asia asian attraction barren battle beautiful blue border boulders building bum bumla camp camping capped check china desert destination east famous field ground high hiking hills himalaya himalayan himalayas historic historical holidays india indian indo laboratory landscape mountains nature north observatory panorama panoramic pass peak place point popular post pradesh research rocks rocky scenery scenic science scientific sino site sky snow statue stones tawang tibetan tourism tourist tradition traditional travel traveling vacation view war