Purbeck Mineral and Mining Museum
After the closure of Eldon sidings all clay exports were via lorry. For several years the clay was carried from the mines across the A351 by trains to the "Lorry Drop". It was realised that the lorries could take the clay directly from the mines and the cost of maintaining a railway system avoided. The transhipment buildings were raised to accommodate the lorries beneath them and in the early 1970s the railway system sold partly into preservation and the rest scrapped. Use of narrow gauge railways continued underground at Norden No 6 & 7 mines until all mining operations ceased in 1999.
Dombes
The clay till which also goes by the now rather old-fashioned but still useful name of boulder clay, is usually very sticky when wet and hard when thoroughly dry. This made arable use of the land with medieval implements impossible and it was unsuitable for pasture most of the time. Usually, such land was left as woodland but here, enterprising landowners seem to have taken it on when nobody else wanted it and attempted to make it produce income by excavating lakes for the raising of fish.