Bhutan, No 78 I, Tongsa

1935

Survey of India

Bhutan & Tibet, No 78 E, Punakha

1934

Survey of India

Assam, Bhutan & Tibet, No 78M. Towang

1920

Survey of India

India and adjacent countries

1931

Survey of India offices

1:1m

Yamdrog Tsho

1958

United States. Army Map Service.

1:3m

Gyangtse

1959

United States. Army Map Service.

1:3m

Assam et Boutan. Asie 84.

1827

Vandermaelen, Philippe, 1795-1869

1:2m

India 8.

1883

Letts, Son & Co.

1:2m

KARTE von ASSAM

1834

Berghaus, Heinrich Karl Wilhelm

1:1m

India Ganges Plain. (inset) (continuation of main map). India and Pakistan (Bangladesh) - Ganges Plain. Pergamon World Atlas.

1967

Polish Army Topography Service

1:3m