Several fault-lines, presumably of late-glacial age, in northern Sweden are described. The amount of displacement in the dislocations may reach 25 m and the most extensive fault-line is about 150 km long. The faults were all developed in the Precambrian and they frequently coincide with older dislocation zones. The regional connection between the neotectonic structures and the Recent seismic pattern within the area is obvious. This indicates that the forces which produced the faulting are possibly still active.