Coal Authority Geophysical Borehole Logs

Coal Authority Geophysical Borehole Logs coverage
Scale N/A
Coverage Various areas in the UK
Format Tape Image File (TIF) and LAS (Log ASCII Standard)
Price £45 – £55 per tape file. £10 per LAS curve. Subject to number of users, licence fee and data preparation fee.

The map shows the location of those borehole records that contain digital geophysical logs, acquired by the former National Coal Board and British Coal during their exploration for coal in the United Kingdom.

Following privatisation of the UK coal industry, ownership of UK coal exploration data was transferred to the Coal Authority (CA), who appointed the British Geological Survey as custodian of this important national geological data archive. In general, these data are publicly available, however access to data within active mining licences requires the consent of the mining licensee.

The CA data archive includes digital data for some of the geophysical borehole logging. The original tapes have been transcribed and the data are available as Tape Image Files (TIF) or, in some cases, as digital LAS (Log ASCII Standard) files.

The BGS can provide information on data availability for named boreholes or those within a specified area, together with cost estimates and options for supply. To find the names of boreholes please use the GeoIndex at, click on ‘Map layers’, select ‘Map Theme: GeoPhysics’ and tick on ‘British Coal Geophysical Logs’


Contact Digital Data for more information.

Hutton field: well correlation diagram.