Nasu District, Tochigi
district in Tochigi prefecture, Japan
Nasu (那須郡, Nasu-gun) is a district located in Tochigi Prefecture, Japan. The district consists of the two discontiguous towns of Nasu and Nakagawa, separated by the city of Ōtawara in the middle.
The total area of the district was 1,209.59 km2 before the former constituent towns of Nishinasuno, and Shiobara were consolidated with Kuroiso to form the new city of Nasushiobara on January 1, 2005. In 2003, the district had an estimated population of 154,881 and a density of 128.04 persons per km2.
Mergers
On January 1, 2005 the towns of Nishinasuno and Shiobara merged with the city of Kuroiso to form the new city of Nasushiobara.
On October 1, 2005 the towns of Batō and Ogawa merged to form the new town of Nakagawa.
On October 1, 2005 the towns of Karasuyama and Minaminasu merged to form the new city of Nasukarasuyama.
On October 1, 2005 the town of Kurobane, and the village of Yuzukami merged into the city of Ōtawara.
This brief starts where responsible research should: with the source description of “Nasu District, Tochigi” as district in Tochigi prefecture, Japan. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as district in Tochigi prefecture, Japan. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Sep 17, 2026. The linked authority identifier is Q1203347. VIAF identifies the subject as 139674996. The Library of Congress control number is n89110690. Authority coordinates are 37.032, 140.125. 1 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2005 and 2003.
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.
- 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 “Nasu District, Tochigi”, its source revision and the description used here.
- Expand the search: follow Nasu District, Tochigi primary sources, Nasu District, Tochigi archive and Nasu 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 “Nasu District, Tochigi”?
- 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 “Nasu District, Tochigi” 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.