Draa River
river in Morocco
The Draa (Arabic: وادي درعة, romanized: wādī dar'a; also spelled Dra or Drâa, in older sources mostly Darha or Dara) is Morocco's longest river, at 1,100 kilometres (680 mi). It is formed by the confluence of the Dadès River and Imini River. It flows from the High Atlas mountains, initially south-eastward to Tagounite, and from Tagounite mostly westwards to its mouth in the Atlantic Ocean somewhat north of Tan-Tan. In 1971, the (El) Mansour Eddahabi dam was constructed to service the regional capital of Ouarzazate and to regulate the flow of the Draa. Most of the year the part of the Draa after Tagounite falls dry.
In the first half of the 20th century, the lowest course of the Draa marked the boundary between the French protectorate of Morocco and the area under Spanish rule.
The valley contains the Fezouata formations, which are Burgess shale-type deposits dating to the Lower Ordovician, filling an important preservational window between the common Cambrian lagerstätten and the Late Ordovician Soom shale. In the fossilized fauna were numerous organisms previously thought to have died out after the mid-Cambrian.
History
Prehistory
Human occupation in the Draa valley and adjacent mountains dates at least to the Lower Paleolithic, as attested by Oldowan and Acheulean tools found near Tamegroute. Middle Paleolithic sites are widespread.
Begin with the source’s own compact description: “Draa River” is river in Morocco. The dossier treats that line as a proposition to test through Draa, River and river, not as a finished interpretation.
Why this record matters
The phrase “river in Morocco” 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 Aug 2, 2026. The linked authority identifier is Q486636. VIAF identifies the subject as 316431123. Authority coordinates are 30.912, -6.760. 3 of 3 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1971.
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.
- 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 “Draa River”, its source revision and the description used here.
- Expand the search: follow Draa River primary sources, Draa River archive and Draa 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 “Draa River”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Draa River” 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.