NINETEEN SIXTY FOUR – PART 14
Charlestown Harbour
Michael L. Roach
As copper mining, and later tin mining, declined in Victorian times something arose to take its place and that was the rapid expansion of the mining and export of kaolin or china clay from the huge deposits to the north of St. Austell. As china clay mining declines a new mineral is in demand to takes its place and that is lithium, which is needed for car batteries, and which occurs in the same areas as china clay. The production of lithium took a big leap forward with the opening of a 10,000 tonne per annum demonstration plant to produce battery-grade lithium hydroxide in October 2024. The plant is owned by Cornish Lithium and located at Trelavour.
One of the smaller china clay mining companies was owned by the Tregothnan Estates – Tregothnan House is the home of Lord Falmouth. The Company was known as the Goonvean and Rostowrack China Clay Company, later changing the name to just Goonvean; and one of their main sites was at Trelavour mentioned above. Goonvean sold out to Imerys in 2014. It is believed that latterly Goonvean were the only company to use Charlestown Harbour for dispatching china clay but that ceased many years ago (20 to 30 ?). Since then Charlestown has been used as a base for sailing ships. I would call into Charlestown harbour occasionally when passing particularly in the 1970s and 1980s to see what coasters were present and take photographs.
Monday 7 May 1979 was a Bank Holiday. The following day I took a day off work and spent several hours at Charlestown in and around the harbour photographing the comings and goings. I was very lucky and had picked a good day. There were three coasters in port when I arrived at 12.30pm and three when I left five hours later. However I watched one leave and another arrive to take its place. Ships arriving have to be turned through ninety degrees which is done by warping. This was then done by dock workers with a rope attached to the each end of the ship.
There has never been a standard gauge railway line bringing china clay to the harbour because it wasn't originally necessary. The china clay arrived at the harbour by pipeline in slurry form and was dried in “dries” adjacent to the harbour from where it could be taken under the road in tunnels on a narrow gauge railway and dumped straight into the holds of the waiting ships down a sloping chute. The chutes were in use until the end of clay exports through the port of Charlestown and were doomed because of the clouds of fine dust released into the air, which was not at all environmentally friendly ! Charlestown is a “floating harbour” which means that water is normally retained in the harbour by a single lock gate. The gate can be lowered into the horizontal position when the water levels each side of the gate have been equalised which in practice (from observation) is about two hours before high water to two hours after high water, allowing boats to sail in and out. The china clay dries closed many decades ago after which all the clay arrived by road. Part of the site of the dries was later used as the Charlestown Shipwreck and Heritage Centre. In 2024 it was announced that the museum was for sale but there may have been no takers as museums are having a tough time at present. Later it was announced that the museum was to close with contents sold by Lay's Auctioneers of Penzance. The auction details say that there are some 8000 artifacts, from 150 shipwrecks, to be auctioned on 6/7/8 November 2024 at Lay's Saleroom in Penzance, with viewing of the artifacts on the four days before the first auction day on site at Charlestown.
The next port to the west was Pentewan which once also exported large volumes of china clay, but suffered continual problems with silting up. The last ship left Pentewan in 1940. Three miles to the east of Charlestown was the Port of Par, which had far more berths than Charlestown. The main commodity dealt with at Par was again china clay but it also imported materials like timber. There was a good view of Par Docks from main line trains and it was possible at times to see more than half a dozen coasters moored up. Par gradually lost out to Fowey as a result of the BR Docks at Fowey being leased to ECLP; the direct railway from Par to Fowey being converted to a haul road for china clay lorries; and the gradual shift to larger cargo ships. The last coaster left Par in 2007, leaving just the Port of Fowey to export china clay to other countries – a job that the port has been doing since 1869, although the history of the harbour goes back at least 400 years before that date.
Charlestown is well worth visiting if you have never been, and for readers living further away who would like a day out by train the village is located just one and a half miles from St. Austell railway station. Read more at the website - http://www.charlestownharbour.com
Goss Moor goings-on
Jon Hird


Swindon Scenes
Ken Mumford
Something for the weekend?
Diesel / DMU day at The Bodmin Railway
Cornwall Model Railway Exhibition at Carn Brea