Ilek (river)
river in Russia and Kazakhstan

The Ilek (Kazakh: Елек / Elek, IPA: [jeˈlʲek]; Russian: Илек, IPA: [ɪˈlʲek]) is a river in the Aktobe Region, Kazakhstan, and Orenburg Oblast, Russia. It is 149 kilometres (93 mi) long, and has a drainage basin of 13,700 square kilometres (5,300 sq mi).
The river basin is of archeological significance. There are burial sites of ancient Kurgan (Indo-European) cultures.
Course
The Ilek is a left tributary of the Ural. It is a steppe river, flowing at the southern end of the Ural Mountains. It rises just south of Orsk, flows south a short distance and then flows westward south of and parallel to the river Ural, with many meanders and oxbow lakes, and joins the Ural about 75 kilometres (47 mi) west of Orenburg. Two main cities lie on the banks of the Ilek River: Sol-Iletsk and Aqtöbe (alternate spelling: Aktöbe, Aktyubinsk).
The Ilek remains the most polluted water body in the Ural-Caspian basin. The content of boron and chromium in the river is caused by the tailing ponds of former chemical plants via ground water.
This brief starts where responsible research should: with the source description of “Ilek (river)” as river in Russia and Kazakhstan. 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 Russia and Kazakhstan. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q598256. Authority coordinates are 49.500, 57.417. 2 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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 “Ilek (river)”, its source revision and the description used here.
- Expand the search: follow Ilek (river) primary sources, Ilek (river) archive and Ilek 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 “Ilek (river)”?
- 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 “Ilek (river)” 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.