About this project

Project scope

Mine headframes were once central to the operation of deep mines, marking the point at which underground workings connected with the surface. Although many have been demolished, adapted, or lost, a significant number survive in varying states of preservation. Together, they represent an important but often overlooked part of Europe’s industrial heritage.

The project focuses on recording what remains today. Each site entry brings together location data, mapping, photography, and technical description to document surviving structures, their form and function, and their relationship to the wider mining site. Where possible, site histories and development timelines are included, with dates and interpretations clearly qualified to reflect the available evidence.

HAAbase Mines does not attempt to provide a comprehensive history of all mining activity in Europe. Instead, it is deliberately focused on sites where physical surface structures survive, particularly headframes, winding towers, and associated shaft infrastructure. In a limited number of cases, other significant mining structures are included where they provide important evidence of site function or development.

Methods and sources

The project is built through a combination of desk-based research and field survey. Initial research is undertaken to identify mining sites where headframes or other significant surface structures are known or believed to survive. Priority is given to sites with clear physical remains that can be documented and interpreted from the surface.

The long-term aim is to visit and photograph every site included in the register. However, HAAbase Mines covers a large and growing number of sites across Europe, so completing this fieldwork will take considerable time. Entries may therefore initially be based on desk-based research and available evidence, with original photographs and observations added as sites are visited.

Where field visits are undertaken, photographs are taken from publicly accessible locations and record the surviving structures and their wider setting. This allows the project to be conducted responsibly and lawfully, but it can also limit the level of detail or range of viewpoints available. Structures may be partly obscured, inaccessible, located within operational or private sites, or visible only from a distance, and this is reflected in the accompanying descriptions.

Historical information is drawn from a range of published and unpublished sources, including archival material, geological and mining literature, heritage records, historic mapping, and site-specific studies where available. Dates, functions, and interpretations are presented cautiously and qualified where evidence is incomplete or conflicting.

Artificial intelligence tools are used to assist with locating and comparing sources, organising research, and preparing some initial drafts. The resulting information is checked and edited before publication, with particular attention given to site identity, surviving structures, location, dates, and conflicting evidence. However, the scale and international coverage of the project mean that the depth of verification may vary between entries.

HAAbase Mines should therefore be read as a developing record of surviving surface evidence rather than a definitive account of all mining activity at a given location. Its purpose is to document, compare, and better understand the physical legacy of deep mining as it exists today.

Accuracy and limitations

Considerable care is taken to ensure that information presented on HAAbase Mines is accurate, proportionate to the available evidence, and clearly sourced where possible. However, mining sites are often complex, long-lived, and unevenly documented, and surviving records can be incomplete, contradictory, outdated, or inconsistent in the names used for mines, shafts, and individual structures.

Descriptions of structures, dates, functions, and present condition are therefore based on a combination of field observations where available, published sources, mapping, photographic evidence, and informed interpretation. Some sites have not yet been visited directly, and circumstances on the ground may have changed since the sources or images used for an entry were produced.

Where uncertainty exists, this is stated explicitly. The project does not claim absolute completeness or finality, and entries may be corrected or expanded as sites are visited and new evidence becomes available. Corrections, recent information, and informed local knowledge are welcome.

Safety and access

Former and existing mine sites can be dangerous environments. Hazards may include open or poorly capped shafts, unstable ground, hidden voids, collapsing structures, contaminated water, and unmarked underground workings. Conditions can change over time, and the absence of warning signs should not be taken as an indication that a site is safe.

HAAbase Mines does not encourage trespass or exploration of mine sites. Site visits undertaken for the project are conducted from publicly accessible locations, without entering restricted areas or structures. Information and images are provided for documentation and understanding only, and should not be taken as guidance for visiting or accessing sites.

Map markers, coordinates, and directions links are provided for location reference only. They do not indicate that a site is publicly accessible, safe to visit, or that access is permitted. A route shown by Google Maps or another mapping service should not be treated as permission to enter private land, restricted areas, operational sites, buildings, structures, or fenced land.

Anyone interested in mining heritage is strongly advised to respect land ownership, follow local regulations, and prioritise personal safety at all times.