For those who wonder what it is that they are hiking over as they head for that hidden loch in the hills :)
http://www.nls.uk/bartholomew/highlights/botanical-survey/hardy-vegetation/index.html
Once you get there you will want to know what plants might be in the loch :)
http://www.snh.org.uk/publications/on-line/advisorynotes/4/4.htm