This article is a list of all the places in Prydain and Annuvin, including natural features, political divisions, villages and fortresses.
Land of Prydain - Natural Features[]
- Eagle Mountains - Range of black, snow-capped mountains in the north of Prydain.
- Llawgadarn Mountains - High range in the northeast, north of the Free Commots.
- Hills of Bran-Galedd - Uplands northeast of Annuvin.
- Forest of Idris - Vast woodland in the west of Prydain, south of Annuvin.
- The Great Avren River - The largest river in Prydain, gray and white, it curves southward and from east to west.
- The River Ystrad - The central river in Prydain, east of Annuvin and west of the Hill Cantrevs.
- The Small Avren - A stream flowing east of the Hill Cantrevs.
- River Tevvyn - A turbulent, brown river in the west.
- River Kynvael - River flowing south of Caer Dathyl.
- The Black Lake - Lies in a valley within the most rugged region of the Eagle Mountains.
- Lake of Llunet - Crystalline lake in the Llawgadarn range.
- Lake Llew - A lake only mentioned, never visited or described.
- Marshes of Morva - Bogs lying in the southwest.
- Medwyn's Valley - A fertile vale in the foothills of the Eagle Mts.
- Red Fallows- A barren wasteland southeast of Annuvin.
- Isle of Mona - An Island west of the mainland.
- Hills of Parys - Eroded uplands of Mona.
- Alaw River - Fast river of northern Mona.
Land of Prydain - Realms, Cantrevs, Villages and Caers[]
*Hill Cantrevs - Uplands lying east of the River Ystrad and west of the Small Avren.
- Valley Cantrevs- A broad lowland west of the River Ystrad with many cantrevs, including Cantrev Cadiffor.
- Cantrev Cadiffor - The kingdom of Smoit in the Valley Cantrevs, its seat of power is Caer Cadarn.
- Caer Cadarn - The stone-walled fortress of King Smoit, replete with dungeons.
- Lord Gast's Fort - Timber palisaded fort, replete with meager feasting table and trove of mediocre treasures.
- Lord Goryon's Fort - Timber palisaded fort, replete with stables full of stolen horses.
- Cantrev Cadiffor - The kingdom of Smoit in the Valley Cantrevs, its seat of power is Caer Cadarn.
- The Free Commots - A land of small villages of lordless craftsmen and women in the southeast.
- Eastern Strongholds - Cantrevs east of the Eagle Mountains and perhaps north of the Llawgadarn Mountains.
- Northern Realms - A group of cantrevs north of Caer Dathyl, West of the Eastern Strongholds.
- Fflewddur's Kingdom - The unnamed cantrev ruled by Fflewddur Fflam.
- West Domains - Coastal cantrevs, home to King Pryderi and the House of Pwyll.
- Caer Dathyl - A fortress and city in the Eagle Mountains of the north, the ruling seat of Prydain.
- Caer Dallben - A small farm south of the Great Avren, owned by Dallben and farmed by Coll.
- Isle of Mona - An Island west of the mainland.
- Dinas Rhydnant - Port-town of Mona.
- Caer Colur - Ancestral home of Princess Eilonwy's forebears, the House of Llyr.
- The Kingdom of Tylwyth Teg - The land of the Fair Folk, it lies beneath The Black Lake.
- Spiral Castle - The castle-on-a-mount founded by King Rhitta and later inhabited by Achren.
- Oeth-Anoeth - A stronghold of Arawn, not far from Annuvin.
Land of Annuvin[]
- Annuvin - Arawn's western stronghold of evil, the Land of Death.
- Dark Gate
- Mount Dragon
- Hall of Warriors
- Arawn's Great Hall