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Research dossier · Places & Architecture

Canche

river

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 27, 2026
Entity authorityQ1032916
Source-derived summary

The river Canche (French pronunciation: [kɑ̃ʃ]; Dutch: Kwinte) is one of the rivers that flow from the plateau of southern Boulonnais and Picardy, into the English Channel, of which the Somme is the largest example. It is 100.2 km (62.3 mi) long. The basin of the Canche extends to 1,274 square kilometres (492 mi2) and lies in the south of the département of Pas-de-Calais. Forming an alluvial valley from 1 to 2 kilometres (0.6 to 1.2 mi) wide, the Canche valley also contains marshes, meadows and small woods. The gentle gradient, averaging 1.5 percent, gives the river a meandering course.

The river rises at Gouy-en-Ternois and passes Frévent, Hesdin, and Montreuil-sur-Mer before leaving the chalk to flow to the coast between Étaples and Le Touquet-Paris-Plage. Its principal tributaries are the Ternoise, the Planquette, the Créquoise, the Bras de Bronne, the Course, the Dordogne (not to be confused with the Dordogne) and the Huitrepin which all join on its right bank, i.e. to the north of the Canche. The lie of the land means there is no notable tributary from the south until the Grande Tringue, which flows from marshland into the small, dredged estuary.

History

The valley of the Canche has been occupied by man since ancient times because of the productive nature of the land.

Editorial summary

“Canche” enters the record as river. Crown Archives preserves that source wording while asking what Canche and river can confirm, complicate or overturn.

Editorial reviewMost useful as a place-based finding aid connecting the present description to earlier jurisdictions, maps and built evidence. The current 216-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Canche and river.
Editorial analysis

Why this record matters

“Canche” is worth following because a concise public description often conceals a longer documentary argument. Here, Canche and river provides the most credible route into that argument.

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 27, 2026. The linked authority identifier is Q1032916. VIAF identifies the subject as 315129071. The Library of Congress control number is sh86007057. Authority coordinates are 50.541, 1.599. 1 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.

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 “Canche”, its source revision and the description used here.
  2. Expand the search: follow Canche primary sources, Canche archive and Canche 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 “Canche”?
  2. Which earlier names or jurisdictions may reveal additional records?
  3. What physical evidence or contemporary plan supports the description?
Subject index

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Source & attribution

This entry incorporates text from Canche” 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.