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Welcome to the Gloucestershire Society for Industrial Archaeology (GSIA) website. The Society was formed in 1964 to study and record the history and physical remains of Gloucestershire industries.

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Slag blocks

Featured Article

Eighteenth Century Slag Construction Blocks in Gloucestershire - A Survey by Nigel Spry

Distinctive black slag construction blocks can be seen in buildings and walls in many villages, particularly near the rivers Wye and Severn. The most likely origins for these blocks are copper and brass works on the Wye and Bristol Avon, respectively. The gazetteer gives 184 locations in the County where slag blocks may be found.

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Slag blocks in a cottage at Newnham on Severn in 2000