This is the other hill (clickable) I made for my Scottish themed terrain. It is based on a Javis model I picked up cheaply on eBay, but I customised it heavily, and repainted the rocks. It is around 40cm wide. The heather on the slopes is glued in place, but the heather on the top can be moved so that troops can be placed there, as shown above. The peak can also be removed, to make the saddle wider.
Happily heather seems to be quite widespread across Europe, so I should be able to use this piece reasonably frequently.