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Place 010 · New research file

Tunnel Mill and the John Work House

A tunnel built to move water through a limestone hill once powered a mill near Charlestown. The mill is gone, but the John Work House, surviving traces and family memories offer several ways into the story.

Front of the John Work House at Tunnel Mill, photographed in September 2012
The John Work House at Tunnel Mill, September 15, 2012. Photo: Nyttend / Wikimedia Commons, public domain. View the original source and rights record.

What the record says

The mill disappeared. Its engineering question did not.

John Work settled along Fourteen Mile Creek around 1804 and built his brick home around 1811. To power a mill, he had a water tunnel blasted through the limestone at a creek bend. [1]

The earlier state marker dates the mill, dam and tunnel to about 1814–1816 and records that the mill burned in 1927. [2] A place can lose its building while leaving the watercourse, family papers and later photographs available for research.

One tunnel. Two recorded lengths.

The 2001 marker describes a tunnel more than 385 feet long. The 2012 marker quotes an 1833 gazetteer giving 314 feet. Both describe roughly two and a half years of work. [1] [2] We have not established whether the figures measure different portions, reflect later changes or contain an error.

That disagreement is an invitation to investigate. A dated survey, engineering drawing or documented measurement would be more useful than repeating whichever number appears most often online.

The camp belongs in the file, too.

Indiana Landmarks describes the property’s later life as a Scout camp and identifies surviving historic features. [3] Do you have a camp photograph, a parent’s story or a labeled group picture? Those records can help connect the mill site with the people who knew it much later.

Help answer one question

Which part can you help recover?

A name, approximate year or link to a record is enough to begin. Say when something is a memory rather than a verified fact.

Research

Can a dated survey or engineering record explain the 314-foot and 385-foot tunnel figures?

Photographs

Does your family have a dated photograph from Tunnel Mill or the Scout camp?

People

Can you identify a Scout group, leader, mill worker or family shown in an old photograph?

Outside

Do older maps or photographs show the dam, mill race or mill building clearly?

Inside

What did camp visitors remember about the John Work House or its interpretation?

Inspect the evidence

Sources and research notes

  1. Indiana Historical Bureau: John Work Home and Mill, 2012 marker — Includes the 1833 gazetteer’s 314-foot description.
  2. Indiana Historical Bureau: Tunnel Mill, 2001 marker — Records the mill fire and a tunnel length exceeding 385 feet.
  3. Indiana Landmarks: Tunnel Mill Scout Reservation — Preservation context and surviving features; contact the property owner for current access information.

Sources checked October 2, 2026. These opening notes distinguish documented history from the questions our community can investigate. We are not affiliated with the organizations linked above.

Keep exploring: The Blackiston Mill Road Files · Rose Island Amusement Park

Help complete the file

One detail can bring a person back into the story.

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