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St Austell Clay Pits

South West England

Lansalon clay pit, a component site of the St Austell clay pits IPA © Mark Robinson under a Creative Commons 2.0 Generic license

Location: Cornwall, north-west of St Austell, and south-east of the A30. They lie either side of the B3279 and B3274 which run south from the A30 towards St Austell.

Grid Reference: SW 980 564

The old clay pits around St Austell comprise 3 different sites. All lie on china workings, on pits, spoil tips or vegetation-covered granite debris and were, until quite recently, mined for china clay.

This particular substrate (exposed clay waste and decaying granite rocks) supports the growth of the internationally rare liverwort, the western rushwort, Marsupella profunda, which is found in only three sites in the United Kingdom.


View map of the IPA

Further information

For additional scientific information on why the St Austell Clay Pits have been identified as an IPA, including details of existing protection, landuse and threats to the site please click here.