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Research dossier · Places & Architecture

Triangle Lake (Ontario)

lake in Kenora District, Ontario, Canada (lat 49.84, lon -93.57)

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 30, 2026
Entity authorityQ3215239 ↗
Source-derived summary

Triangle Lake is a very small lake in northwestern Ontario, Canada. It is located between Dryden and Kenora, Ontario. It can be seen from the Trans-Canada Highway on the north side. In late June, 2009, it was the site of road construction. Triangle lake has recently been discovered to be acidified. It is a major concern.

Editorial summary

This brief starts where responsible research should: with the source description of “Triangle Lake (Ontario)” as lake in Kenora District, Ontario, Canada (lat 49.84, lon -93.57). Everything that follows is an evidence route, not borrowed authority.

Editorial reviewMost useful as a place-based finding aid connecting the present description to earlier jurisdictions, maps and built evidence. The current lead gives the account dated anchors—2009—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Triangle, Lake and Ontario can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the places & architecture register because the source frames it as lake in Kenora District, Ontario, Canada (lat 49.84, lon -93.57). Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

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 30, 2026. The linked authority identifier is Q3215239. Authority coordinates are 49.837, -93.573. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2009.

Critical limits

Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. 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.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “Triangle Lake (Ontario)”, its source revision and the description used here.
  2. Expand the search: follow Triangle Lake (Ontario) primary sources, Triangle Lake (Ontario) archive and Triangle research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Triangle Lake (Ontario)”?
  2. Which authority defined the place, boundary or structure at the relevant date?
  3. What physical evidence or contemporary plan supports the description?
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Source & attribution

This entry incorporates text from “Triangle Lake (Ontario)” 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.