Aerial view of woodland and small fields in the Carwynnen and Troon area of Cornwall

Troon · Carwynnen · Camborne · Cornwall

Ten years underground.What has changed above it?

An independent public-interest investigation into land, water, woodland, wildlife, ground stability and community concerns around Holmans Test Mine, Troon and Carwynnen.

The question is not one blast, one fallen tree or one water sample. It is whether repeated activity inside an old, fractured and historically mined underground system has interacted with existing workings, groundwater or geological structures in ways that affect the landscape above.

The core principle of this website

Every statement is labelled

Nothing on this site is presented as proven unless it is. Each claim, observation and mechanism carries one of four labels, applied consistently across every page, map marker, timeline entry and document record.

Confirmed fact

Established through primary documents, public records, laboratory evidence or independently verified material.

Reported observation

Reported by residents, landowners, witnesses or site observers but not yet independently established.

Working hypothesis

A scientific mechanism which independent experts should test.

Not yet established

There is presently insufficient evidence to reach a conclusion.

Where the work is focused

Six purposes

Preserve evidence

Collect and organise environmental evidence with original metadata intact so it remains usable by regulators and experts.

Explain the area

Set out the land, geology, historic mine workings, water systems and ecology of the Troon and Carwynnen landscape.

Record reported change

Log environmental changes reported by local people — including reports of no change at all.

Structured public survey

Allow residents, landowners and land users to submit observations in a consistent, non-leading format.

Identify the questions

Set out precisely what requires independent professional investigation, and by which discipline.

Provide an open repository

Give regulators, scientists and journalists accessible primary material rather than assertions.

Worked example of the method

How the same subject is handled at four levels

Tree failure in the X-Area woodland shows how the labelling works in practice.

Confirmed fact

The Troon, Carwynnen and Camborne area lies within a historically mined granite terrain containing recorded shafts, adits and shallow workings. This is established by public geological and mining records.

Reported observation

Landowners and site observers report a comparatively concentrated cluster of mature tree failures in an area of woodland west/south-west of the facility, several with exposed root plates.

Working hypothesis

A storm may act as the trigger for tree failure while pre-existing root-zone or ground conditions determine why failures concentrate in one location. This is testable by arboricultural and geotechnical survey.

Not yet established

Whether any activity at any particular facility has contributed to these tree failures. No independent evidence presently establishes this either way.

The purpose of this project

Why this site exists

Something does not have to be proven before it deserves to be investigated.

There are reported changes affecting parts of the land, water, woodland and ground around Troon and Carwynnen. Some facts are already documented. Some observations remain unverified. Several scientifically credible mechanisms have been identified.

The responsible next step is independent evidence gathering, professional investigation and transparent regulatory scrutiny. The purpose of this project is to make that possible.