Dulgalakh
river in Russia

The Dulgalakh (Russian: Дулгалах; Yakut: Дулҕалаах, Dulğalaax) is a river in Yakutia, the left, western source river of the Yana. Its length is 507 km (315 mi) and its basin size 27,300 square kilometres (10,541 sq mi).
Course
The Dulgalakh rises on the central Verkhoyansk Range, south of the southern slopes of the Arkachan Plateau. It flows through Kobyaysky and Verkhoyansky districts. Above Verkhoyansk it merges with the Sartang forming the Yana.
Begin with the source’s own compact description: “Dulgalakh” is river in Russia. The dossier treats that line as a proposition to test through Dulgalakh, river and Russia, not as a finished interpretation.
Why this record matters
The phrase “river in Russia” 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 Sep 12, 2026. The linked authority identifier is Q1264793. Authority coordinates are 67.464, 133.248. 3 of 4 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Dulgalakh”, its source revision and the description used here.
- Expand the search: follow Dulgalakh primary sources, Dulgalakh archive and Dulgalakh research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Dulgalakh”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Dulgalakh” 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.