road of lachung, lachung valley, town and a beautiful hill station in northeast sikkim, india. 9,600 feet and at the confluence of

lachung road valley curvy town himalayan hill station northeast sikkim india confluence lachen river teesta alpine environmental mountain range meadow himalaya yumthang environment indian north travel chilly scenic high tourism freshness trees tourist green natural nature traveling peaks gangtok fresh landscape mountains himalayas beautiful 600 feet rivers tributaries