
Copy this code to add this photo to your webpage
<img src="http://www.bbc.co.uk/staticarchive/e17757f98ef3deaf6947b466edcb29359c201479.jpg" width="600" height="420" alt="" />
The cobbles that cover the cairns in the glen were formed when the last Ice Age ended, and glaciers melted and poured through the area 'like a thousand Niagaras'.
BBC © 2014The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.