Given the proximity of the Chinese and Pakistanese ill defined borders, Zanskar is considered by India as a sensitive area. Detailed topographical maps of this region are thus not avaible to non-Indian officials. For this reason, our geological map is essentially based on satellite imagery. We used both panchromatic Spot images with a ground resolution of 10m and Landsat images with a ground resolution of 80m. Other cartographic sources include:
- Trekking routes sheets 2,3 (Jammu & Kashmir) and 5 (Himachal Pradesh). Scale 1:200'000. 1987. Leomann Maps U.K.
- US Army Maps: Palampur, (Jammu & Kashmir) NI 43-16, series U502, edition 2-AMS 1:250'000. 1962
- US Army Maps: Martselang, (Jammu & Kashmir) NI 43-12, series U502, edition 2-AMS 1:250'000. 1963
- Northern India, Special map: Ladakh/Zanskar. 1: 650'000, Nelles Verlag, Germany