Nidelva
river in Trøndelag, Norway
Nidelva is a 30-kilometre (19 mi) river in Trondheim in Trøndelag county, Norway.
Location
The Nidelva starts at the Hyttfossen waterfall which rises from Bjørsjøen, a small lake located just below Selbusjøen, the largest lake in the southern part of Trøndelag County. The Nidelva runs north through Klæbu, then to Tiller, and then through the city of Trondheim before reaching Trondheimsfjord by the island of Brattøra near Trondheim Central Station. The Nidelva is at its deepest at the Trongfossen, a deep ravine in the village of Klæbu. There are six hydro-electric power stations along the river. The Nidelva forms the last part of the Nea-Nidelvvassdraget watershed. The Nea River is a tributary which empties into Selbusjøen, which in turn flows into the Nidelva.
A song referencing the river, Nidelven stille og vakker du er ("Nidelven quiet and beautiful you are"), was written by resistance fighter and composer Oskar Hoddø.
Gallery
References
Other sources
Øksendal, Asbjørn (1969). Lurøy-affæren - Operasjon Oleander: Gestapo i Trondheim og Leksvik-affæren 1942-44 (in Norwegian).
Begin with the source’s own compact description: “Nidelva” is river in Trøndelag, Norway. The dossier treats that line as a proposition to test through Nidelva, river and Trøndelag, not as a finished interpretation.
Why this record matters
The phrase “river in Trøndelag, Norway” 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 Aug 4, 2026. The linked authority identifier is Q499668. VIAF identifies the subject as 246993945. Authority coordinates are 63.258, 10.528. 2 of 3 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1969 and 1942.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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 “Nidelva”, its source revision and the description used here.
- Expand the search: follow Nidelva primary sources, Nidelva archive and Nidelva 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 “Nidelva”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Nidelva” 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.