Lielā Jugla
river in Latvia

Lielā Jugla is a river in Latvia. It flows for 63 kilometres (the length would reach 118 km if the Mergupe river were counted as part of the Lielā Jugla), through the municipalities of Sigulda and Ropaži. The source of the river is located in Mālpils parish, Sigulda Municipality 71 m above sea level, whereas the mouth is 0.1 m asl. River slope is 1.1 m/km, annual drainage 0.26 km3. Lielā Jugla begins at the confluence of the Suda and Mergupe rivers in village Sidgunda.
Lielā Jugla joins with Mazā Jugla thus forming the river Jugla shortly before its mouth into Jugla Lake at the Riga city eastern border with the municipality of Ropaži. The river is a water tourism site. The Ropaži hydroelectric plant is located on the river.
Virtually the entire river flows along the Lowland of Central Latvia (Latvian: Viduslatvijas zemiene). The river meanders through a wooded area, the pool is heavily drained in some places.
“Lielā Jugla” enters the record as river in Latvia. Crown Archives preserves that source wording while asking what Lielā, Jugla and river can confirm, complicate or overturn.
Why this record matters
“Lielā Jugla” is worth following because a concise public description often conceals a longer documentary argument. Here, Lielā, Jugla and river provides the most credible route into that argument.
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 Sep 12, 2026. The linked authority identifier is Q5620656. Authority coordinates are 56.970, 24.323. 1 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank.
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 “Lielā Jugla”, its source revision and the description used here.
- Expand the search: follow Lielā Jugla primary sources, Lielā Jugla archive and Lielā 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 “Lielā Jugla”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Lielā Jugla” 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.