# Kosaka Mine Office
**Wikidata**: [Q11459450](https://www.wikidata.org/wiki/Q11459450)  
**Source**: https://4ort.xyz/entity/kosaka-mine-office

## Summary
Kosaka Mine Office is the historic office building of the Kosaka Mine in Kosaka, Japan, completed in July 1905 and built in a Renaissance architectural style. It is an Important Cultural Property of Japan and remained in service as the mine office until 1997.

## Key Facts
- Inception: July 1905.  
- Service retirement (ceased operation as mine office): 1997.  
- Location: Kosaka, Japan; coordinates 40.32844444 N, 140.74436111 E.  
- Instance of: mine building and office.  
- Architectural style: Renaissance architecture.  
- Heritage designation: Important Cultural Property of Japan.  
- Japanese name (alias): 旧小坂鉱山事務所.  
- Official website (Japanese): http://kosaka-mco.com/publics/index/46/ (language: Japanese).  
- Commons media: exterior image https://commons.wikimedia.org/wiki/Special:FilePath/Kosaka_Mine_Office_20180916c.jpg, nighttime view https://commons.wikimedia.org/wiki/Special:FilePath/Kosaka_Mine_Office_at_night_20171216a.jpg, interior image https://commons.wikimedia.org/wiki/Special:FilePath/KosakaMiningOfficeInternal1.JPG.  
- Japanese database of national cultural properties ID: 102/3718.  
- TripAdvisor listing ID: 2105945.  
- Google Knowledge Graph ID: /g/121_5_7t.

## FAQs
### Q: What is the Kosaka Mine Office?
A: The Kosaka Mine Office is the historic administrative office building of the Kosaka Mine in Kosaka, Japan, constructed in July 1905 and designed in a Renaissance architectural style.

### Q: Where and when was the Kosaka Mine Office built?
A: The office was completed in July 1905 and is located in Kosaka, Japan at latitude 40.32844444 and longitude 140.74436111.

### Q: What is the cultural status of the Kosaka Mine Office?
A: The building is designated an Important Cultural Property of Japan and is listed in the Japanese database of national cultural properties under ID 102/3718.

## Why It Matters
The Kosaka Mine Office matters as a preserved example of industrial-era architecture tied to Japan’s mining history. Built in 1905 in a Renaissance style, the building served as the administrative center for the Kosaka Mine and remained in service until 1997, giving it long-term functional and historical continuity. Its designation as an Important Cultural Property of Japan recognizes both its architectural value and its role in the industrial heritage of the region. As a tangible artifact of early 20th-century mine administration, the office provides researchers, preservationists, and the public with direct evidence of design, materials, and institutional presence associated with a major mining operation. The building is documented in national cultural property records and represented in public image collections, supporting its use as a reference point for studies of industrial architecture and heritage conservation.

## Notable For
- Designated an Important Cultural Property of Japan.  
- Constructed in July 1905 in Renaissance architectural style.  
- Served continuously as the Kosaka Mine’s office until 1997.  
- Well-documented in visual media (exterior, interior, and nighttime photographs).  
- Listed in the Japanese national cultural properties database (ID 102/3718).

## Body

### Overview
- Name: Kosaka Mine Office (Japanese alias: 旧小坂鉱山事務所).  
- Type: Mine building; office.  
- Location: Kosaka, Akita Prefecture, Japan.  
- Coordinates: 40.32844444 N, 140.74436111 E.

### Construction and Dates
- Inception/completion date: July 1905.  
- Operational use as mine office: from completion in 1905 until service retirement in 1997.

### Architecture
- Architectural style: Renaissance architecture.  
- Function: Office building associated with the Kosaka Mine (administrative/mine office use).  
- Images documenting style and condition are available in public media repositories (see Key Facts).

### Recognition and Preservation
- Heritage designation: Important Cultural Property of Japan.  
- Japanese national cultural properties database ID: 102/3718.  
- The building is cataloged and publicly referenced through heritage and media repositories.

### Public and Reference Identifiers
- Official website (Japanese): http://kosaka-mco.com/publics/index/46/ (language qualifier: Japanese).  
- TripAdvisor listing ID: 2105945.  
- Google Knowledge Graph ID: /g/121_5_7t.  
- Commons category: Kosaka Mine Office.

### Media
- Exterior photo: https://commons.wikimedia.org/wiki/Special:FilePath/Kosaka_Mine_Office_20180916c.jpg  
- Night view: https://commons.wikimedia.org/wiki/Special:FilePath/Kosaka_Mine_Office_at_night_20171216a.jpg  
- Interior photo: https://commons.wikimedia.org/wiki/Special:FilePath/KosakaMiningOfficeInternal1.JPG

(End of entry.)

## References

1. Japanese Database of National Cultural Properties