The caves were mined for over 4,500 years, beginning in the Bronze Age and continuing into the mid-20th century.
The hematite extracted from these caves was often referred to as 'bloodstone' and was used as a pigment in red ochre.
The caves have served as a filming location for several science fiction television series, including Doctor Who and Merlin.
A portion of the cave system is designated as a Site of Special Scientific Interest (SSSI) due to its unique geological features and fossil records.
The mines were historically worked using 'free miner' rights, a unique legal tradition exclusive to the Forest of Dean.
Clearwell Caves is an expansive system of ancient iron ore mines located in the Forest of Dean, with history dating back to the Bronze Age. The site features nine accessible caverns across different levels, showcasing the industrial heritage of the region. Miners historically extracted hematite iron ore from these natural limestone caves and man-made tunnels. Visitors can explore deep underground passages, some of which reach 100 feet below the surface. The site operates as a museum detailing the lives of miners and the geological formation of the cave system. Throughout the year, the caves host themed events, including seasonal underground displays. The environment maintains a constant temperature of approximately 10 degrees Celsius, regardless of exterior weather conditions.
The dramatic illuminated subterranean passages and the large cathedral-like chambers.
Bring a warm sweater or light jacket, as the underground temperature remains cool year-round.
Wear sturdy, comfortable footwear with good grip to navigate uneven, damp, and natural cave floors.
Allow extra time if visiting during school holidays to account for specialized themed activities.
Wearing open-toed shoes or sandals, which are unsuitable for the rocky, muddy, and uneven terrain inside the caves.
Closed during certain winter months; open daily throughout the main tourism season with variations during holidays.
Avoid touching the walls to preserve the geological features and do not stray from the marked visitor pathways.
