iGeology - Interactive geological mapping of the UK.

iGeology is for anyone who wants to explore their local geology, at street-level scale, virtually anywhere in the UK.

Amateur geologists, walkers and gardeners can look at what’s in their local area, to find out about the rocks at the surface (superficial deposits) or the bedrock beneath.

Search on place names or the postcode where you live, then click on the map and reveal the rocks beneath your feet. iGeology will locate your iPhone or iPad (if GPS is enabled) and zoom to your location.

The maps use the British Geological Survey’s national scale (1:625 000) and ‘Landranger’ scale (1:50 000) geological datasets of the United Kingdom (UK).

Map coverage
1:50000 dataset covers almost the whole of England, Wales and Scotland. In Version 8 there is now only one map tile with no data on any theme: EW180_Knighton.
Only 1:625 000 scale data is available for Northern Ireland.

What’s New

Version 6.0.2

- Bug fixes

Ratings and Reviews

4.7 out of 5
1.8K Ratings

1.8K Ratings

Dave Highland ,

A fantastic resource

Teaching geography and environmental studies for many years I have always found it useful to be able to refer to the basic, underlying geology that shapes the landscapes in which I work. In the past this has meant working with large sheets that is often impractical, both in the field and within the confines of a classroom.
The App is so easy to use and, with many students having access to it through their own iPads, accessible in the classroom/lab it makes my life so much easier.
A great resource in constant use as a teaching and research tool.

Betty Swolocks ,

What's under my feet? Why that's easy?

I literally stumbled across this app doing some research for a navigation exercise I'm planning to run in The Brecon Beacons.
No longer do I have to spend hours pouring over books and multiple cross references as it's all here in the app. Big point; given the provenance I have total confidence in the content. I image I will use this app now every time I go out into the mountains, hills and moorlands. The 'what's here' and associated more info is a gem. I will also be passing the information onto all of my outdoorsy colleagues.

Horse82 ,

Superb app

If you're interested in knowing the structure of the land in which you are spending some time away from home, then this is the app to get. Put together by the top experts in the UK, it gives you all the information you could want, right from the very spot where you're standing to everything you can see around you.
Get it use it, enjoy it!


Natural Environment Research Council
119.8 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Arabic

Age Rating
In-App Purchases
  1. Natural Subsidence Report £6.99
  2. Radon Risk Report £3.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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