Transhimalaya
mountain range in China, parallel to the main Himalayan range
The Transhimalaya (also spelled Trans-Himalaya), or Gangdise – Nyenchen Tanglha range (Chinese: 冈底斯-念青唐古拉山脉; pinyin: Gāngdǐsī-Niànqīngtánggǔlā Shānmài), is a 1,600-kilometre-long (990 mi) mountain range in China, India and Nepal, extending in a west–east direction parallel to the main Himalayan range. Located north of Yarlung Tsangpo river on the southern edge of the Tibetan Plateau, the Transhimalaya is composed of the Gangdise range to the west and the Nyenchen Tanglha range to the east.
The name Transhimalaya was introduced by the Swedish geographer Sven Hedin in the early 20th century. The Transhimalaya was described by the Columbia Lippincott Gazetteer in 1952 as an "ill-defined mountain area" with "no marked crest line or central alignment and no division by rivers." On more-modern maps the Kailas Range (Gangdise or Kang-to-sé Shan) in the west is shown as distinct from the Nyenchen Tanglha range in the east.
Geology
The Transhimalayas are geologically distinct from the other Himalayan ranges. They were probably formed by subduction of sediments from the collision of the Indian and Eurasian plates. A consensus of different dating methods suggests that the older parts of this range formed in the upper Cretaceous (82-113 Mya), while the younger regions formed in the Eocene (40-60 Mya).
Climate
The Transhimalayas generally have a cold, arid montane climate. For example, the Spiti region of Himachal Pradesh, India, has an annual rainfall of about 170 millimetres or 6.7 inches. However, studies in Mustang District, Nepal, indicate that climate change is warming the Transhimalayas at a rate of about 0.13 °C or 0.23 °F per year.
Begin with the source’s own compact description: “Transhimalaya” is mountain range in China, parallel to the main Himalayan range. The dossier treats that line as a proposition to test through Transhimalaya, mountain and range, not as a finished interpretation.
Why this record matters
The phrase “mountain range in China, parallel to the main Himalayan range” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 18, 2026. The linked authority identifier is Q593003. VIAF identifies the subject as 233689822. Authority coordinates are 31.000, 91.000. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1952.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Transhimalaya” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.