Map based index (GeoIndex) onshore borehole samples

[This metadata record has been superseded, see http://data.bgs.ac.uk/id/dataHolding/13480339]. This layer of the Map based index (GeoIndex) shows the location of registered samples of drillcore and washed cuttings from onshore boreholes drilled in UK by BGS, commercial and public bodies, representing almost 10,000 boreholes. There is also a drillcore collection taken from onshore boreholes drilled in England and Wales by the BGS and commercial and public bodies.