Helm's Deep

An ancient fortress of Rohan, built into the side of Thrihyrne a peak of the White Mountains. The fortifications are based on a narrow ravine that leads from the green coomb, deep into the mountain. The Hornburg stands at the entrance to the cleft, on a heel of rock that jutted out from the north.

From the base of the rock a wall called Helm’s Gate runs across the mouth of the vale and before this a dike. Through all these defences ran the Deeping Stream, which added another barrier for attacking forces to cross.

At the far end of the valley there were vast caverns which formed the last line of defence. In all it was a formidable redoubt, and if stocked with food and manned well it was capable of holding off an invading force many times the size of the defence.

41N 65E