Borremose is a raised bog in central Himmerland, Denmark south east of the town of Aars. The name translates directly as 'Borre'-bog, where 'Borre' might well be a derivation of the old word burgh meaning fortified place, as seen in many other place-names.
Location of Borremose in Denmark
The northern part of the bog is heavily overgrown with trees and shrubs nowadays and is inaccessible in most places. Furthermore, due to industrial turf-production during and after World War II, large parts of the bog has turned into lakes.