Site investigation and geotechnical data received by BGS from third party organisations in AGS file format. When received by BGS, the AGS data are validated against predefined rules, processed and stored in the BGS AGS agnostic store. The data are delivered as received. No interpretative values or observations are added to the data by BGS. A layer showing the locations of boreholes with open data deposited with BGS via the AGS process is available on the GeoIndex. For more details on depositing AGS data with BGS see: http://www.bgs.ac.uk/data/ags. AGS data is the industry-standard exchange format for geotechnical data in the UK. For more information, visit the official website for the Association of Geotechnical and Geoenvironmental Specialists to learn more about the AGS and the technical details of the data exchange format.