Dol Aerrochben

Dol Aerrochben (S. "Hill of the Sea-knight") was an islet off the northern tip of Tolfalas. This islet possessed a fortification that housed the Master of the Straits, the royal officer responsible for guiding ships through the nearby narrows. The masters three rugged ships rescued shipwrecked seamen and braved vicious storms in order to deliver urgent messages to the mainland. A beacon stood adjacent to Dol Aerrochben, a few miles from the northeasternmost point of the main island. Even amidst the roar of the sea, the lights and bell-tolls from this beacon easily reached the great twin tower that commanded the summit of Dol Aerrochben.

The towers and beacon of Dol Aerrochben were established by King Eärnil I of Gondor T.A. 915, soon after Tolfalas had become a royal ward, in order to accommodate the greater frequency of maritime traffic that had emerged under his predecessor, the first Ship-king, Tarannon Falastur. Dol Aerrochben was not abandoned with Gobel Tolfalas and the rest of the royal installations on the island, but was maintained by the Lord-captain of Linhir as an outpost for patrolling the straits against Corsair incursions. It was annihilated during the Great Raid in T.A. 1634, but , was reestablished during die T.A. 1810-1940 period, abandoned again in T.A. 2050. and permanently reestabished in F.A. 52 by Prince Imrahil of Dol Amroth.