Byoryolyokh
river in Yakutia, Russia

The Byoryolyokh (Russian: Бёрёлёх, Yakut: Бөрөлөөх, romanized: Börölööx) is a river in Yakutia in Russia. It flows into the Russko-Ustyinskaya, a left distributary of the Indigirka.
History
By the Byoryolyokh, more than 8,000 bones from at least 140 woolly mammoths have been found in a single spot, apparently having been swept there by the current.
The northernmost archaeological site of the Paleolithic Stone Age is located by the river at 71°0′N 148°54′E.
Etymology
The name of the river is based on the Yakut language Бөрөлөөх, Börölööx, meaning "teeming with wolves."
Course
The source of the Byoryolyokh is located at the confluence of two small rivers north of the Polousny Range. The river flows roughly northeastwards across the Yana-Indigirka Lowland. The length of the Byoryolyokh is 754 kilometres (469 mi). The area of its drainage basin is 17,000 square kilometres (6,600 mi2).
The river is also known as "Yelon" (Russian: Елонь) in a section of its lower course. It joins the Indigirka from the left at the Russo-Ustinsky Canal, the western arm of the Indigirka River near its mouth, not far from Chokurdakh.
The main tributaries of the Byoryolyokh are the Wese-Killah on the left; and the Ulakhan-Killah (Tiit), Selgannah and Ary-May on the right.
This brief starts where responsible research should: with the source description of “Byoryolyokh” as river in Yakutia, Russia. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as river in Yakutia, Russia. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Q879450. Authority coordinates are 70.985, 149.033. 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 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.
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 “Byoryolyokh”, its source revision and the description used here.
- Expand the search: follow Byoryolyokh primary sources, Byoryolyokh archive and Byoryolyokh 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 “Byoryolyokh”?
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- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Byoryolyokh” 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.