1881 Map of Sikkim published with a paper by <a href="https://en.wikipedia.org/wiki/Sir_Richard_Temple,_1st_Baronet" class="extiw" title="w:Sir Richard Temple, 1st Baronet">Sir Richard Temple</a> in the <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/1800507?seq=1#metadata_info_tab_contents">Journal of Royal Geographical Society, 1881</a>.
British India's border with Sikkim and Bhutan shows the <a href="https://en.wikipedia.org/wiki/Darjeeling_district" class="extiw" title="w:Darjeeling district">Darjeeling</a> and <a href="https://en.wikipedia.org/wiki/Kalimpong_district" class="extiw" title="w:Kalimpong district">Kalimpong</a> districts acquired from those states. The trade route between <a href="https://en.wikipedia.org/wiki/Kalimpong" class="extiw" title="w:Kalimpong">Kalimpong</a> and the <a href="https://en.wikipedia.org/wiki/Chumbi_Valley" class="extiw" title="w:Chumbi Valley">Chumbi Valley</a> via <a href="https://en.wikipedia.org/wiki/Jelep_La" class="extiw" title="w:Jelep La">Jelep La</a> is also shown.
W. J. Turner, RGS (W. &amp; A. K. Johnston, Edinburgh &amp; London)
1881
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