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Lake Lop Nur, a remote salt lake in the Tarim Basin of western China, was one of the significant features mapped by Swedish explorer Sven Hedin. Hedin's extensive expeditions in Central Asia during the early 20th century focused on charting unknown territories, particularly rivers and cities. However, his meticulous observations also extended to other geographical landmarks, including Lake Lop Nur, which he encountered and mapped during his explorations.