Road to the Ikeshima Coal-Fired Power Station, chimney and boiler house against a wooded hill with utility poles along the verge.

01 Ikeshima2026

Series · 54 prints

Ikeshima

Photographed 2026
Frames 54
Camera Nikon F100
Film Kodak Portra 400 · Fujifilm Velvia 50 · Cinestill 800T · 35mm
Location Ikeshima, Nagasaki
Status Mine closed 2001; former miners run the underground tour until the facility closes at the end of FY2026; 111 residents in 2021
Years 1959 to 2001
Heritage No heritage designation identified at national, prefectural or municipal level. Not part of the UNESCO "Sites of Japan's Meiji Industrial Revolution" inscription.
Specs Operational years: 1959 to 2001 (42 years of production) · Lifetime output: approximately 44.5 million tonnes of clean coal · Maximum working depth: about 650 m below sea level · Peak island population: 7,770 (1970) · Peak annual output: over 1.5 million tonnes (1985) · Underground roadways: about 96 km by the 1990s
01 ABOUT THIS SERIES

Series story

Map · Mapbox · OpenStreetMap

Ikeshima Coal Mine operated beneath the seabed off Nagasaki from 1959 until 29 November 2001, making it the last new coal mine to open in Japan and the last large-scale underground colliery to close. At its 1970 peak the island held 7,770 residents on a 0.86 km² rock in the Gotō Sea, housed in company-built concrete towers above a mine that reached 650 m below sea level.

Ikeshima Coal Mine grew from offshore boring begun in 1948 that confirmed coal seams under and around a small island in the Gotō Sea, roughly 7 km off the Nishi-Sonogi Peninsula west of Nagasaki. Commercial output started in 1959 under Matsushima Coal Mining, a Mitsui group subsidiary, and ran for 42 years. The mine was entirely submarine: the worked seams sat beneath the seabed, reaching about 650 m below sea level, and from 1974 extended a further 4 to 5 km west to a second working area off the islet of Hikishima. German-built high-speed personnel trains carried miners to faces far out under the water. Peak production in 1985 exceeded 1.5 million tonnes; lifetime output was approximately 44.5 million tonnes of clean coal.

The island sustained nearly 7,800 residents at its 1970 peak, housed in reinforced-concrete apartment towers with communal bathhouses and a rent of about 400 yen, served by the island's own coal-fired power station and seawater-desalination plant. When the mine closed on 29 November 2001, about 2,500 employees were dismissed and most residents left. Rather than being sealed, the workings were kept usable: from 2002 the site ran a government-backed overseas coal-technology transfer programme, and Ikeshima now operates what is described as Japan's only underground coal-mine experience tour, with former miners as guides. By 2021 the resident population had fallen to 111.

02 TIMELINE

Chronology

1948
1955
1959
1967
1974
1981
1985
2001
2002
2008
2016
2021
2025
03 PRINTS

Prints in this series

Hand-signed and numbered, printed from a scan of the original negative. Open editions in the two smallest sizes; limited editions of 100, 50 and 25 in the three larger, never reissued once they sell through.

04 ABOUT THE PRINTS

How they’re made

Made to order by Brett in Sydney, from a scan of the original negative. Each print is hand-signed and numbered before it ships.

Paper

Ilford Galerie cotton rag, 310 gsm. Acrylic on metallic gloss, 260 gsm.

Editions

Open in XS and S. Limited in M (100), L (50), XL (25). From $100.

Print tiers →

Lead time

Unframed: 5 to 10 business days. Framed and acrylic: 10 to 20.

05 FIELD NOTE

From the field

Read all field notes
06 BACKGROUND

Notes on the site

The mine that became a school

While still producing coal, Ikeshima trained around 500 people from 28 countries in deep-mining methods. After closure in 2001 the workings were kept open for a government-backed technology transfer programme, sending Japanese undersea mining expertise to Indonesia, Vietnam and elsewhere. The mine's afterlife was as useful as its working life.

German trains under the sea

Reaching the coal faces required travelling more than 5 km underground at up to 50 km/h aboard German-built high-speed personnel trains. The engineering record names two sets, the Megami-go and Jikai. After closure, one trainset was kept on the island; the other went to the Omuta Coal Industry and Science Museum in Fukuoka.

08 REFERENCES

Sources and further reading

  1. 01
    Nagasaki City Official Tourism Site "Travel Nagasaki", Ikeshima Coal Mine Ruins (池島炭鉱跡)1952en.at-nagasaki.jp/spot/61048
    T2
  2. 02
    Ministry of Land, Infrastructure, Transport and Tourism (国土交通省)1974mapps.gsi.go.jp/
    T2
  3. 03
    UNESCO World Heritage Centre2015whc.unesco.org/en/list/1484
    T2
  4. 04
    Mitsui Matsushima Holdings Co., Ltd1913mitsui-matsushima.co.jp/history/
    T2
  5. 05
    JOGMEC (Japan Oil, Gas and Metals National Corporation), "Project for Overseas Transfer of Coal Mining Technology", pres1952jogmec.go.jp/content/300366085.pdf
    T2
  6. 06 T2
  7. 07
    Britannica International Encyclopedia, concise entries (ブリタニカ国際大百科事典 小項目事典), entry "池島炭鉱", via Kotobank1948kotobank.jp/word/池島炭鉱-30271
    T2
  8. 08
    Mitsui Matsushima Resources chronology, "池島炭鉱の歴史的経緯と現状(年表)三井松島リソーシスの資料より" (from Mitsui Matsushima Resources materials), 1913blog.ikeshima.info/post/28301510245/chronological-table
    T2
  9. 09
    Yoshimura Yoshito, "Closure of Japan's Last Large-Scale Coal Mine", IIST World Forum No2002web.archive.org/web/20041114074439/iist.or.jp/wf/magazine/0067/0067_E.html
    T2
  10. 10
    "松島火力発電所" (Matsushima Power Station), Japanese Wikipedia, with the J-POWER official facility page (1981jpower.co.jp/learn/facilities/matsushima.html
    T2
  11. 11
    FISCO Ltd., Mitsui Matsushima Holdings company research report, 9 June 20222022fisco.co.jp/wordpress/wp-content/uploads/FISCO/mitsui-matsushima20220609.pdf
    T2
  12. 12
    Nagasaki City official page, "池島への交通手段" (Transport to Ikeshima), page id 0003659, updated 2025-03-17, ferry timetable cucity.nagasaki.lg.jp/page/3659.html
    T2
  13. 13
    Japanese Wikipedia, 池島炭鉱1985ja.wikipedia.org/wiki/池島炭鉱
    T2
  14. 14
    English Wikipedia, Ikeshima2021en.wikipedia.org/wiki/Ikeshima
    T2
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