Lag Prau Pulté
lake

Lag Prau Pulté is a lake at Flims in the canton of Grisons, Switzerland.
Geography
This lake falls completely dry in autumn and remains empty until being filled by growing underground flows depending on temperatures and snow melt rate in the mountains. During a cold period in spring, water that entered the dell of this lake may disappear again as snow melt decreases and all water remains in the underground flow. As soon as the basin is finally filled, a small river of just about half a mile in length (falling some 100 meters in level) will start flowing around May. Its destination is another lake, Lag Tuleritg, which is fed by this river in spring, disappearing in autumn and staying dry all winter. Due to its origin the water of both lakes remains grey all summer until the level starts to go down in autumn. In Lag Prau Pulté one can see another special effect caused by air being forced out of the underground, causing the lake not only to remain grey but offering frequent bubbles on the surface.
Because its proximity it is very likely that the water from Lag Tuleritg continues underground to Caumasee, although no experiments using colour was ever to prove this.
Literature
Hermann Anliker: Schweizer Heimatbücher: Flims; Haupt-Verlag, Bern 1961
Sina Semadeni-Bezzola: Waldhaus Flims, Werner Classen-Verlag, Zürich 1976
Emil Kirchen: Wenn der Berg stürzt: das Bergsturzgebiet zwischen Chur und Ilanz - Chur [etc.]: Terra Grischuna, cop. 1993.
Begin with the source’s own compact description: “Lag Prau Pulté” is lake. The dossier treats that line as a proposition to test through Prau, Pulté and lake, not as a finished interpretation.
Why this record matters
The phrase “lake” 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.
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 Jul 26, 2026. The linked authority identifier is Q690097. Authority coordinates are 46.827, 9.275. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1961, 1976 and 1993.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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 “Lag Prau Pulté”, its source revision and the description used here.
- Expand the search: follow Lag Prau Pulté primary sources, Lag Prau Pulté archive and Prau 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 “Lag Prau Pulté” 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.