Étang du Lanoux
lake in Angoustrine-Villeneuve-des-Escaldes, Occitania, France

The Lake Lanoux or Estany de Lanós is the biggest lake in the Pyrénées.
It is located in the Pyrénées-Orientales, France.
Geography
The Étang du Lanoux is located entirely on the commune of Angoustrine-Villeneuve-des-Escaldes.
History
Henry Russell is known to have made the first ascent of the Pic Carlit in 1864, where he was fascinated by the beautiful view of the Étang du Lanoux, which can be seen from the top.
Lake Lanoux Arbitration 1957 (France v Spain)
This arbitration concerned the use of the waters of Lake Lanoux, in the Pyrenees. The French Government proposed to carry out certain works for the utilization of the waters of the lake and the Spanish Government feared that these works would adversely affect Spanish rights and interests, contrary to the Treaty of Bayonne of May 26, 1866, between France and Spain and the Additional Act of the same date. In any event, it was claimed that, under the Treaty, such works could not be undertaken without the previous agreement of both parties.
Lake Lanoux lies on the southern slopes of the Pyrenees, on French territory. It is fed by streams which have their source in French territory and which run entirely through French territory only. Its waters emerge only by the Font-Vive stream, which forms one of the headwaters of the River Carol.
“Étang du Lanoux” enters the record as lake in Angoustrine-Villeneuve-des-Escaldes, Occitania, France. Crown Archives preserves that source wording while asking what Étang, Lanoux and lake can confirm, complicate or overturn.
Why this record matters
“Étang du Lanoux” is worth following because a concise public description often conceals a longer documentary argument. Here, Étang, Lanoux and lake provides the most credible route into that argument.
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 Jul 31, 2026. The linked authority identifier is Q282328. Authority coordinates are 42.589, 1.904. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1864, 1957 and 1866.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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 “Étang du Lanoux”, its source revision and the description used here.
- Expand the search: follow Étang du Lanoux primary sources, Étang du Lanoux archive and Étang 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
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This entry incorporates text from “Étang du Lanoux” 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.