The Reach Map
The complete map of The Reach in Game of Thrones — from Highgarden and Oldtown to The Arbor, Horn Hill, and the Mander River. The breadbasket of Westeros, fully charted.
The Reach is the most fertile and populous kingdom in Westeros and the ancestral domain of House Tyrell. Ruled from Highgarden — at the confluence of the Mander River and the Roseroad — The Reach stretches from the Dornish Marches in the south to the Blackwater Rush in the north, bounded by the Sunset Sea to the west. It is home to Oldtown (the oldest city in the Seven Kingdoms), the legendary wine island of The Arbor, the mountain seat of Horn Hill, and more sworn lords than any comparable region. The Reach supplies more food, soldiers, and ships to Westeros than any other single kingdom.
What Is The Reach?
The Reach is not merely another kingdom — it is the engine that feeds Westeros. While the North has its ancient pride and the Westerlands its gold, The Reach has something more fundamental: land that grows, rivers that run full, and a climate mild enough to produce surplus harvests year after year. Every major war in Westerosi history has turned, at some point, on who controlled The Reach’s grain and swords.
Ruled from Highgarden — seat of House Tyrell — The Reach occupies the southwestern quadrant of Westeros. The great Mander River, the longest in all Westeros, bisects it west to east before emptying into the Sunset Sea near Highgarden. To the southwest lies Oldtown, the oldest settlement in the Seven Kingdoms and home to the Citadel — the center of all Maester learning. Off the southwestern coast floats The Arbor, the most celebrated wine island in the known world.
The Reach is densely settled by Westerosi standards, filled with castles, market towns, and roads. The Roseroad runs northeast from Highgarden to King’s Landing carrying the agricultural wealth that has made House Tyrell one of the most powerful families in the realm. In Game of Thrones, its destruction by Cersei Lannister in Season 7 reshapes the entire balance of war for Westeros.
Reach Positioning DiagramThe Essential Reach Locations
The six places that define the political, geographic, and cultural map of The Reach.
Highgarden
The ancestral seat of House Tyrell and the most beautiful castle in Westeros, positioned at the heart of The Reach where the Mander River meets the Roseroad. The wealthiest noble seat in the south — until Cersei Lannister burned it all.
Explore Highgarden → 📚Oldest City · Home of the CitadelOldtown
The oldest city in the Seven Kingdoms, home to the Citadel and the Order of Maesters. Where the Whispering Sound meets the Sunset Sea — and where Sam Tarly travels in Season 6 to train, and discovers a truth that changes the war.
Explore Oldtown → 🍷Island Territory · House RedwyneThe Arbor
The celebrated wine island off The Reach’s southwestern coast. Arbor gold is the finest wine in the known world, and the Redwyne fleet is among the largest sworn to any Westerosi lord. Far more than just a wine island.
Explore The Arbor → 🏔Eastern Marches · House TarlyHorn Hill
The mountain seat of House Tarly on The Reach’s eastern edge, bordering the Dornish Marches. Home of Samwell Tarly and his harsh father Randyll Tarly — widely considered the finest military commander still living in Westeros.
Explore Horn Hill → 🌊Great River · Agricultural LifelineThe Mander River
The longest river in Westeros, flowing westward through the heart of The Reach to the Sunset Sea. The Mander’s fertile banks enable the trade and agriculture that makes The Reach the wealthiest breadbasket in all the Seven Kingdoms.
Explore The Mander → 🛡Western Defense · Ironborn BufferThe Shield Islands
Four islands at the mouth of the Mander River defending The Reach’s western coast from Ironborn raids. Their strategic value is immense — their loss opens the Mander and the heart of The Reach to any enemy fleet sailing the Sunset Sea.
Explore Shield Islands →Browse The Reach by Region
Move from the central Tyrell heartland to Oldtown’s ancient southwest, the coastal island territories, and the eastern border marches.
Major Locations in The Reach at a Glance
A quick-reference map guide to The Reach’s main seats, rivers, islands, and border zones.
| Location | Type | Position in The Reach | Best Known For | Regional Importance |
|---|---|---|---|---|
| Highgarden | Castle / Seat | Central — Mander confluence | House Tyrell seat; sacked by Lannisters in Season 7 | Main regional capital |
| Oldtown | City | Southwest — Whispering Sound | Oldest city in Westeros; home of the Citadel | Knowledge & cultural hub |
| The Citadel | Institution | Within Oldtown | Headquarters of all Maesters; Sam trains here in S6 | Realm’s scholarly center |
| The Hightower | Tower / Seat | Oldtown harbor | One of the tallest structures in Westeros | House Hightower’s ancient seat |
| The Arbor | Island | Southwest coast | Finest wine in the known world; House Redwyne fleet | Naval & economic power |
| Horn Hill | Castle / Seat | East — Dornish Marches border | House Tarly; Sam’s home; Randyll Tarly’s command | Primary eastern march |
| Shield Islands | Islands | West coast — Mander mouth | Ironborn buffer; controls Mander river access | Western sea defense |
| The Mander River | River | Central, crosses W–E | Longest river in Westeros; agricultural lifeline | Trade & farming backbone |
| Bitterbridge | Town / Crossing | Central — Mander crossing | Roseroad crossing; Renly Baratheon’s camp site | Key strategic crossing |
| Goldengrove | Castle / Seat | Northeast | House Rowan — major Reach bannerman | Northeastern noble seat |
| Brightwater Keep | Castle / Seat | Southwest — near Oldtown | House Florent; sided briefly with Stannis Baratheon | Southwest minor seat |
| Ashford | Town / Castle | South — Dornish border | Famous tournament site in Westerosi history | Southern border town |
The Reach Map FAQs
The key questions readers ask when exploring The Reach — its geography, its houses, and its role in Game of Thrones.
The Reach is the most fertile and populous kingdom in Westeros, ruled by House Tyrell from Highgarden. It occupies the southwestern portion of the continent, bordered by the Sunset Sea to the west, the Dornish Marches to the south, and the Westerlands and Stormlands to the north and east. It is Westeros’s agricultural heartland — producing more food, soldiers, and ships than any comparable region.
Highgarden sits at the geographic and political center of The Reach, where the Mander River meets the Roseroad — the main trade route running northeast toward King’s Landing. It is the seat of House Tyrell and the administrative capital of the region. In Season 7, Highgarden is captured by the Lannister and Tarly forces, ending Tyrell power over The Reach entirely.
Season 7 is catastrophic for The Reach. Cersei first destroys Tyrell leadership by blowing up the Great Sept of Baelor, killing Mace and Loras Tyrell. Then Jaime Lannister and Randyll Tarly seize Highgarden. Olenna Tyrell takes poison rather than face worse. The gold is stripped to repay the Iron Bank. On the return march, Daenerys and Drogon burn much of the combined army at the Loot Train Battle. The Reach is left without leadership or military force.
Oldtown is the oldest city in Westeros and home to the Citadel — headquarters of the Order of Maesters. In Game of Thrones, it is where Samwell Tarly travels in Season 6 to train as a Maester, and where he discovers the dragonglass deposit at Dragonstone — a revelation that changes the strategy of the war against the Night King. The city is ruled by the ancient House Hightower.
The Arbor is a large island off The Reach’s southwestern coast, ruled by House Redwyne. It produces Arbor gold — considered the finest wine in the known world — and maintains one of the largest private fleets in Westeros. Its strategic value is both economic and naval: the Redwyne fleet controls access to the Mander and the Sunset Sea, making The Arbor far more powerful than its size suggests.
House Tyrell of Highgarden is the paramount house of The Reach. Major bannermen include: House Hightower of Oldtown (ancient and enormously wealthy), House Tarly of Horn Hill (the region’s greatest military commanders), House Redwyne of The Arbor (naval and wine wealth), House Florent of Brightwater Keep (who briefly backed Stannis), and House Rowan of Goldengrove. Together they command Westeros’s richest coalition of lords.
No. The North is the largest region in Westeros by landmass. The Reach is the second largest, but far more densely populated and economically productive. The North is vast but sparse and limited by its climate. The Reach is smaller but packed with fertile land, rivers, towns, and castles. In population, soldiers, and food production, The Reach surpasses the North significantly — it is the richer and more powerful of the two in practical terms.
✦ Explore More Reach Maps on Maps of Thrones
The Reach is more than Highgarden alone. From the ancient knowledge towers of Oldtown to the wine-drenched shores of The Arbor, from the military marches of Horn Hill to the river crossings that move armies across the continent — every corner of The Reach adds depth to the Tyrell world and the larger story of who controls Westeros. Its fall in Season 7 is not just a political shift. It is the removal of the engine that fed the realm.