Toyooka, Hyōgo
city in Hyōgo Prefecture, Japan
Toyooka (豊岡市, Toyooka-shi) is a city in the northern part of Hyōgo Prefecture, Japan. As of 31 March 2022, the city had an estimated population of 78,348 in 37,769 households and a population density of 110 persons per km2. The total area of the city is 697.55 square kilometres (269.33 sq mi).
Geography
Toyooka is located in the northern part of Hyōgo Prefecture and the Kinki region, facing the Sea of Japan in the north. It lies entirely within the San'in Kaigan Geopark. The Maruyama River flows through the central part of the city, and the Toyooka Basin, which is the largest basin in the Tajima region, spreads out in the central part of the city. Toyooka is located in the "snow country" of Japan and is characterized by heavy accumulations of snow in winter. One of Toyooka's famous geological features is a basalt cave called Gembudō. Gembudō was formed 1.6 million years ago from the eruption of an ancient volcano. In 1926, Professor Motonori Matuyama of Kyoto University first proposed the theory of geomagnetic polarity reversal at Genbudo after discovering it had a reverse magnetization.
Begin with the source’s own compact description: “Toyooka, Hyōgo” is city in Hyōgo Prefecture, Japan. The dossier treats that line as a proposition to test through Toyooka, Hyōgo and city, not as a finished interpretation.
Why this record matters
The phrase “city in Hyōgo Prefecture, Japan” 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 Sep 4, 2026. The linked authority identifier is Q696388. VIAF identifies the subject as 252620072. Authority coordinates are 35.544, 134.820. 4 of 5 selected statements include explicit references; 1 carry qualifiers and 1 use preferred rank. The first chronological checks are 2022 and 1926.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. 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.
- 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 “Toyooka, Hyōgo”, its source revision and the description used here.
- Expand the search: follow Toyooka, Hyōgo primary sources, Toyooka, Hyōgo archive and Toyooka 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 “Toyooka, Hyōgo”?
- 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 “Toyooka, Hyōgo” 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.