Want to know where we are operating?

Click on the buttons to view the latest location…

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 2017 consist of airborne surveys in Co Mayo and Co Donegal, and a geochemical survey in the Midlands of Ireland.  Both surveys will be commencing in early spring and will finish in autumn 2017.

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.


The aircraft and ground teams will be operating from spring till autumn 2017.

View our airborne flyers for Co Donegal, Co Mayo and ground survey of the Central Midlands

Tellus ground survey…

The ground survey will commence again in late spring.  More details to be released soon

Where the plane is flying…

The airborne survey will commence again in late spring.  More details to be released soon

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

Having trouble viewing the flight lines? Open ARCGIS Viewer link in a new browser window.

Latest News from Tellus

Do you have sensitive animals in our airborne survey area?

Do you have questions?

Want to see the survey results?