iGeology App | Britain's rocks in your pocket


App | Britain's rocks in your pocket

iGeology is a free smartphone app that lets you take over 500 geological maps of Britain wherever you go to discover the landscape beneath your feet. Available for iPhone/iPad, Android and Kindle Fire.

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Download from: Apple App StoreGoogle PlayAmazon

iGeologyOn the rocks! Geologists' top ten favourite seaside holiday spots

If you're heading to the coast this summer hoping to do a bit of rock spotting, you can use our handy top ten list of geological coastal holiday destinations around Britain to find your nearest places of interest.

iGeology Reviews

‘Fantastic to have this information at your fingertips. I use it regularly in my job as a wildlife and natural history interpreter — thank you NERC.’

Neil Fletcher

‘Excellent — if you are interested in rocks (and who isn't?) You will love this!’


‘This is a super app for reviewing the geology of Britain. It is easy to use, contains a wealth of accurate data — and it's free! Thoroughly recommended.’


See all reviews


Community Favourite Mobile App

The ESRI Community Favourite Mobile App award presented by ESRI CEO Jack Dangermond to Wayne Shelley, iGeology lead developer, at the ESRI International User Conference in San Diego, California, on 14 July 2011.

The award was presented to the BGS lead developer by Jack Dangermond CEO (right) and founder of ESRI.

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Storytelling with Maps

iGeology also picked up the ESRI award for the third best app in the Storytelling with Maps Competition.

iGeology picked up the third best app in ESRI’s Storytelling with Maps competition.

Citizen geologists

Share your geological observations with other iGeology users! Submit photographs showing points of interest and outcrops, or tell us where our mapping needs revisiting.

Geological photo feed

View the latest imagery submitted by other iGeology users, highlighting the varied geological landscape of the British Isles.

Discover our geology

Get direct access to detailed information about the geology all around you. Tapping the map reveals the bedrock and superficial geology as well as explaining how certain features were formed.

Multiple layers

With iGeology you can choose to view one of our many data layers — from bedrock and superficial geology to William Smith's 1815 map.

Site assessment

Customised geological reports can be generated for any location within the UK. Learn more about radon risks and natural subsidence directly from your device.


With iGeology you can access the BGS National Geoscience Data Centre's collection of over one million onshore scanned borehole, shaft and well records.

Stay up to date

Keep in touch with all the news and events happening at the BGS.

Offline access

Access geological information even with no network connection. Simply navigate to the area before heading out into the field and iGeology will locally cache it for you.

Keep in touch

Join the growing conversation with our App Developer Network and Twitter feed.


Contact Enquiries for more information.