The <a href="https://en.wikipedia.org/wiki/North-East_Frontier_Agency" class="extiw" title="w:North-East Frontier Agency">w:North-East Frontier Agency</a> of India, showing the border with China along the <a href="https://en.wikipedia.org/wiki/McMahon_Line" class="extiw" title="w:McMahon Line">w:McMahon Line</a>
Survey of India
Extracts from larger images on commons