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Pulvermaar

lake in Germany

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 29, 2026
Entity authorityQ1317765
Source-derived summary

The Pulvermaar is a water-filled maar that lies southeast of Daun in the German state of Rhineland-Palatinate. Together with the Holzmaar it is one of the Gillenfeld maars.

Description

A tuff site in the bog formations of the neighbouring Strohner Maar is ascribed to the Pulvermaar and is therefore older than the Pulvermaar. Early pollen analyses of the bogs gave an age for the tuff site – and thus the Pulvermaar – of about 10,050 years. More recent studies show, however, underwater terraces at greater depth as well as ice wedges inside the tephra deposits, both of which suggest that the maar was formed during the last ice age, 20,000 to 30,000 years ago. Volcanologists from the Smithsonian Institution estimate the last eruption of the Strohner Maar and Pulvermaar in 8,300 BC.

The almost circular maar has steep funnel-shaped sides. The maar lake lies at a height of 411 m above sea level (NN) and, with a maximum depth of 72 metres (236 ft), is the deepest in the Volcanic Eifel. It has a diameter of about 700 metres (2,300 ft) and surface area of 38.48 hectares (95.1 acres) and is thus also the largest waterbody of the Eifel maars, even if the volcanic structure as a whole, which measures 900 * 950 m is exceeded by other maars in the Eifel.

After Lake Constance and the lakes of the Pre-Alps (the Königssee, Walchensee, Lake Starnberg, Ammersee, Chiemsee, Tegernsee) the Pulvermaar is the deepest natural lake in Germany. It is likely that the Pulvermaar was originally even deeper, perhaps as deep as 200 metres.

Editorial summary

The public source identifies “Pulvermaar” as lake in Germany. This brief keeps that definition visible, then builds a research path around Pulvermaar, lake and Germany.

Editorial reviewA strong orientation record where physical form, institutional use and historical geography need to be read together. The current 264-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 value is orientation rather than verdict, with Pulvermaar, lake and Germany providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Pulvermaar”, the useful work is to connect “lake in Germany” to the records capable of establishing context and consequence.

Evidence profile

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 Jul 29, 2026. The linked authority identifier is Q1317765. VIAF identifies the subject as 247839106. Authority coordinates are 50.131, 6.926. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.

Critical limits

Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “Pulvermaar”, its source revision and the description used here.
  2. Expand the search: follow Pulvermaar primary sources, Pulvermaar archive and Pulvermaar 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 “Pulvermaar”?
  2. What physical evidence or contemporary plan supports the description?
  3. Which earlier names or jurisdictions may reveal additional records?
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Source & attribution

This entry incorporates text from Pulvermaar” 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.