Núi Cốc Reservoir
lake in Vietnam

Núi Cốc Reservoir (Vietnamese: Hồ Núi Cốc) is an artificial lake, approximately 25 kilometres (16 mi) west of the city of Thái Nguyên in Thái Nguyên Province, Vietnam, in Tam Đảo National Park. It is a popular visitor attraction on account of the legend associated with the 89 islands within the lake.
Geography
The lake is located in the scenic backdrop provided by the Coc Mountain (Vietnamese: Núi Cốc). The lake was created on the Công River, a tributary of the Cầu River. The lakeshore is divided into two areas, namely the northern bank and the southern bank. The northern bank has many upscale guest houses built on slopes of the hill amidst green trees, known as keo la cham. There is a water park and also an artificial dinosaur park on this bank.
Lake and its precincts
The lake has an area of 2,500 hectares (6,200 acres) with 23 metres (75 ft) deep waters with a storage capacity of 175 million cubic metres. A circular motor boat ride around the lake is an attraction.
An ecotourism park was also developed in March 2007 with musical fountains.
This brief starts where responsible research should: with the source description of “Núi Cốc Reservoir” as lake in Vietnam. 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 lake in Vietnam. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Aug 5, 2026. The linked authority identifier is Q7068798. Authority coordinates are 21.579, 105.694. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007.
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 “Núi Cốc Reservoir”, its source revision and the description used here.
- Expand the search: follow Núi Cốc Reservoir primary sources, Núi Cốc Reservoir archive and Reservoir 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 “Núi Cốc Reservoir”?
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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 “Núi Cốc Reservoir” 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.