A Landscape Shaped by Mining
Much of Cornwall’s landscape was changed by centuries of mining for tin and copper, along with other minerals. The ruins that result are among the most striking sights in the county: stone chimneys, roofless buildings, spoil heaps, wheel pits and dramatic clifftop workings. Parts of this landscape are recognized internationally for their heritage value. Many of the sites are now visited by walkers and families, and some are managed by organizations that provide paths, signs and information.
These places are fascinating, but they were built for industrial work, not for visitors. Behind the romance of the ruins are hazards that can be serious. Mine site safety starts with understanding what those hazards are and accepting that you cannot always see them.
The Main Hazards
Open and hidden shafts. Mines were reached by vertical shafts and angled passages, and many are very deep. Some are capped, fenced or filled, but others are hidden by bracken, brambles or collapsed ground. A shaft may be small, round and surrounded by vegetation, so you might not see it until you are close. Falling into one can be fatal.
Unstable ground. Old workings run beneath the surface in places, and the ground above can subside or collapse. Spoil heaps are made of loose material and can slide. Edges around pits, quarries and old excavations can crumble without warning.
Cliff edges. Many mines on the north and west coasts were built right on the cliff. Edges can be undercut or eroded, and the drop to rocks and sea may be very large. Problems with cliff erosion are common here, and the safe-looking grass at the edge may overhang nothing. Strong winds make things more dangerous.
Ruined buildings. Walls, stacks and engine houses may be unstable, with loose stones or masonry that can fall. Even structures that look solid can be weakened by weather and time. Do not climb on them, lean on them or shelter under them.
Water and contaminated ground. Old mine areas can contain flooded shafts, quarries and pools that are deep, cold and have steep sides. Some also have discolored water and soil from mineral content, so avoid drinking from streams and wash your hands before eating.
Tunnels and adits. Entrances to old tunnels can look inviting, but going inside is dangerous. Roofs can collapse, air can be poor, and there may be hidden drops. Do not enter.
Following Signs and Local Guidance
Warning signs, fences and barriers are there for good reasons, and none of them should be treated as optional or as a challenge. Stay on waymarked paths, do not climb over fences, and take notice of any local advice. If an area is closed, there may be a reason that is not obvious, such as recent ground movement.
Many heritage sites have visitor centers, volunteers or leaflets that explain how to explore safely. If a site is managed, follow its rules about where you can go and when. If it is not managed, be even more careful and assume that paths and structures have not been checked. Where there are guided walks led by knowledgeable people, joining one is often the safest way to see the more complex parts of a landscape.
Planning Your Visit
Check the weather first. Rain makes paths slippery and edges softer, fog can hide drops, and strong wind on a clifftop is a real hazard. Wear sturdy footwear with good grip, and carry a light waterproof. Let someone know where you are going, and make sure your phone is charged, although signal can be patchy on the coast.
If you visit with children, hold hands near edges and keep them within arm’s reach where you cannot see the ground clearly. Dogs should be on a lead, since they can run into hidden shafts or over cliff edges in pursuit of a scent. In some places, grazing animals also share the land, so give them space.
Late in the day, shadows and fading light make hazards harder to see. Aim to be back at your starting point well before dusk.
Looking Without Climbing
The best way to appreciate ruined structures is from a distance, or from a marked viewing area. You can still see a great deal without entering anything. Look at the shapes and the detail from the path, and let the scale of the place sink in. Photographing from a safe spot is better than taking a risk for a closer shot.
It is also unwise to remove stones, minerals or artifacts. Many sites are protected, and what looks like rubble may be an important part of the historical record. Take photographs, not souvenirs.
Why It Matters Beyond Your Own Safety
Visitor accidents put rescue volunteers and emergency services at risk and can also lead to the closure of sites. Staying safe is therefore also a way of protecting access for everyone. Old mining areas are also home to wildlife, including specialized plants that grow on the mineral-rich ground, so staying on paths protects them as well.
The people who worked these sites had few safety protections, and many were hurt or died. The history of the mining communities is part of what you are visiting, and a quiet, careful approach is a fitting way to remember it. If you want to learn more without any risk, mining museums offer indoor displays and guided experiences, and are a good place to start.
A Short Checklist
- Stay on marked paths and obey signs and fences.
- Keep well back from cliff edges and never lean over them.
- Do not enter tunnels, climb walls or approach shafts.
- Keep children and dogs close.
- Check the weather and daylight before you go.
- Tell someone your plans, and carry a charged phone.
- In an emergency on the coast, dial the emergency number and ask for the coastguard.