North east has been the most untouched mountain range explored by the travellers specially Arunachal Pradesh . There are many waow! places in arunachal pradesh like , Tawang , walong , ziro , changlang , miao Etc . And then comes Mechuka , a small town also known as Mechuka valley which is in west siang district of arunachal pradesh. Its 6700ft above sea level . The Best place a true mountain lover can get . Few miles away from china border .