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Subject
- Himalaya Mountains—Discovery and exploration—Maps[remove]4
- Himalaya Mountains—Maps4
- Great Trigonometrical Survey of India3
- Physical geography—Himalaya Mountains—Maps3
- Tibet Autonomous Region (China)—Maps3
- India, Northeastern—Maps2
- Surveying2
- Tibet—Discovery and exploration—Maps2
- Triangulation2
- Brahmaputra River—Discovery and exploration—Maps1
- Kathmandu (Nepal)—Maps1
- Lop Nur (China)—Maps1
- Nepal—Maps1
- Qinghai Sheng (China)—Maps1
- Sichuan Sheng (China)—Maps1
- Uttarakhand (India)—Maps1