The Encyclopedia of Arda - an interactive guide to the world of J.R.R. Tolkien
Location
In the River Anduin, between Anórien to the west and North Ithilien to the east
Pronunciation
kire a'ndros
Meaning
Other Names
Note
The name of this island appears once in a shortened form, as just 'Andros'

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About this entry:

  • Updated 1 October 2000
  • This entry is complete

Cair Andros

The ‘Ship of Long-foam

A large river-island in the Anduin, to the east of the land of Anórien. It was held in defence against Mordor by Gondor to prevent crossings of the Great River, though these defences were breached during the War of the Ring.

The island itself was long and narrow, a little over ten miles in length. At its northern end, sharp rocks split the waters of the Anduin in a bubbling foam that gave the island its name. Cair Andros was covered with trees for much of its length.

Strategically, the island was of immense importance: apart from the bridge at Osgiliath, it was the only practical means for an army from the east to cross the Anduin into Gondor's heartlands. The Gondorians took this risk seriously. Amon Dîn, the first of the Beacon-hills, was set up originally to warn the citizens of Minas Tirith if Cair Andros was ever breached.

Gondor took steps to fortify the island, too, but the history of these fortifications is difficult to establish. We know that it was 'manned' at the time of King Ondoher's fall in III 1944, but whatever defences were in place at that time were apparently abandoned, since Denethor's great-grandfather Túrin II found it necessary to fortify the island again in about the year III 2900.

The Gondorian defences fell on 10 March III 3019. On the same day that the Witch-king rode from Minas Morgul with the armies that would besiege Minas Tirith, Sauron released a smaller force (though still numbering more than 6,000 Orcs and Men) from the Morannon. They overwhelmed the defenders of Cair Andros, and used the island to cross into Anórien. It was this northern force that blocked the eastward progress of the Rohirrim as they rode to Gondor's aid, though after the Battle of the Pelennor, the Rohirrim chased them down and pushed them back out of Anórien.

They retreated to Cair Andros, and apparently held the island for some days. In his march on Mordor, Aragorn released a small group of soldiers from his main army to retake the island if necessary, and hold it. They must have succeeded, since the last we hear of the island of Cair Andros, its moorings were used by the ships of Gondor, as glimpsed by Frodo after completing his Quest.


Notes

1

Tolkien explains the island's name in the Appendices to The Lord of the Rings: '...the isle was shaped like a great ship, with a high prow pointing north, against which the white foam of Anduin broke on sharp rocks.' (The Lord of the Rings Appendix A I(iv), The Stewards.)

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