Uaçá River
river in Amapá, Brazil

Uaçá River is a river of Amapá state in Brazil. It is a tributary of the Oiapoque River.
The area is inhabited by the Galibi Marworno, also called the Uaçá Galibi. They are a mixture of Galibi who fled from French Guiana, and Aruã who fled from the island Marajó. In the 1930, the Indian Protection Service (SPI) founded the village Santa Maria dos Galibis (now called Kumarumã) for them on in island in the river.
Begin with the source’s own compact description: “Uaçá River” is river in Amapá, Brazil. The dossier treats that line as a proposition to test through Uaçá, River and river, not as a finished interpretation.
Why this record matters
The phrase “river in Amapá, Brazil” 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.
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 Feb 18, 2026. The linked authority identifier is Q3432703. Authority coordinates are 4.217, -51.533. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1930.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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 “Uaçá River”, its source revision and the description used here.
- Expand the search: follow Uaçá River primary sources, Uaçá River archive and Uaçá 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 “Uaçá 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 “Uaçá 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.