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Tellus is a ground and airborne geoscience mapping programme, collecting chemical and geophysical data that will inform the management of Ireland’s environment and natural resources.

Tellus is undertaken by the Geological Survey of Ireland and is funded by the Department of Communications, Climate Action and the Environment. All data from Tellus are made available free of charge online.

Tellus involves two types of surveying – airborne geophysical surveying using a low-flying aircraft and ground-based geochemical surveying of soil, stream water and stream sediment. Surveying activities for 2016 consist of airborne surveys in Waterford (May 2016) and Galway (June – autumn 2016), and a geochemical survey in the West of Ireland (May-autumn 2016).

To date, Tellus surveying has been completed in Northern Ireland (2004–2008), the border region of Ireland (2011–2013), the north midlands region of Ireland (2014–2015) and most recently the eastern midlands region (2015). Longer term, Tellus aims to complete surveying the entire island of Ireland on a phased basis, completing 50% by end 2017.


Airborne survey operations for 2016 are now complete.

The aircraft will be back in the air in Spring 2017.

Tellus ground survey…

Ground survey sample collection in Mayo and west Galway is complete for 2016.

Where the plane is flying…

Airborne survey of Galway, Mayo and neighbouring parts of Roscommon, Offaly, Clare and Tipperary is now 100% complete!

Legend: Red Flight Line This week’s flight lines Blue Flight Line Flight lines completed

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Latest News from Tellus


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