ThroneAtlas · Visual Map & Lore Guide

House Tarth Map: Evenfall Hall, Sapphire Isle & Stormlands Connections

An island-house atlas of Evenfall Hall, coastal approaches, highlands and the sea lanes that connect Brienne’s homeland to the wider Stormlands.

Visual AtlasUpdated 2026Canon-aware mappingResearched by Maester Aldric
House Tarth map showing Evenfall Hall on the Sapphire Isle and Stormlands sea connections
Tarth is not simply a house seat on a regional map. It is an island realm whose mountains, western castle and surrounding waters shape movement in every direction.
Quick Answer

House Tarth rules the island of Tarth, known as the Sapphire Isle, in the Stormlands. Evenfall Hall stands on the western side of the island, across the Straits of Tarth from the mainland. The island lies near Shipbreaker Bay and is known for mountains, valleys, lakes, waterfalls and high meadows.

Interactive Atlas

Map the House by Mapping the Island

House Tarth makes most sense at island scale. The atlas centers Evenfall Hall but also shows the Straits of Tarth, mountainous interior, eastern coast, Shipbreaker Bay and political connection to Storm’s End. These features explain why Tarth feels culturally connected to the Stormlands while remaining geographically distinct.

Map legend
CastleCoastPoliticalTerrainWater
N
Evenfall HallThe ancestral seat of House Tarth on the island’s western side, facing the mainland approaches.
House Tarth atlas with Evenfall Hall, Straits of Tarth, mountain spine, high meadows and Shipbreaker Bay
The Sapphire Isle’s geography creates a natural separation between mainland Stormlands politics and an island identity shaped by sea and high ground.
Map Accuracy

Canon Confidence & What This Map Claims

ThroneAtlas separates confirmed geography from useful reconstruction so a clean digital map never appears more certain than the underlying source.

High confidenceTarth’s island position, Evenfall Hall, the Straits of Tarth and the broad character of its mountainous landscape are well established.
Moderate confidenceThe relative placement of inland meadows, lakes and waterfall zones is interpretive because canon describes terrain more clearly than exact coordinates.
Deliberately unstatedNo exact coastline measurements, mountain heights or road distances are presented where the source material does not specify them.
MA
Cartographer & Lore Editor

Maester Aldric

Maester Aldric researches ThroneAtlas pages by comparing published novels, history texts, official reference maps and adaptation-specific geography. Where sources disagree or leave distances unstated, the atlas labels uncertainty rather than turning inference into canon.

Key Takeaways

What the Sapphire Isle Adds to House Tarth

Evenfall Hall is only one anchor

The house seat matters, but the island around it explains House Tarth’s distinct identity.

The Straits create separation

Water physically distinguishes Tarth from mainland Stormlands castles while preserving sea access.

Mountains dominate the interior

High ground, valleys and upland meadows make the island more varied than a simple coastal outpost.

The western seat faces the mainland

Evenfall Hall’s position helps explain political and practical connection to the rest of the Stormlands.

Shipbreaker Bay frames the region

The dangerous waters around Storm’s End belong to the same maritime world as Tarth.

Brienne’s homeland is geographically meaningful

Her family identity comes from an island that is beautiful, remote and still tied to major mainland obligations.

House Tarth is sworn within the Stormlands order

Island geography does not imply political independence from Storm’s End.

Fine interior placement is approximate

The sources describe Tarth evocatively but do not provide a complete topographic survey.

Map Reference

Places, Routes & Strategic Connections

Map AnchorTypeWhy It Matters
Evenfall HallCastleThe ancestral seat of House Tarth on the island’s western side, facing the mainland approaches.
Straits of TarthWaterThe waters separating the Sapphire Isle from the mainland Stormlands.
Mountain SpineTerrainThe island’s rugged interior high ground, represented as a broad terrain zone rather than a surveyed ridge.
High MeadowsTerrainUpland pastoral country associated with Tarth’s scenic interior.
Lakes & WaterfallsTerrainA landscape zone reflecting the island’s famous freshwater scenery.
Eastern CoastCoastThe seaward face of Tarth looking toward the narrow sea routes.
Shipbreaker BayWaterDangerous waters near the Stormlands coast that frame Tarth’s broader maritime setting.
Storm’s EndPoliticalThe Baratheon seat and principal political anchor on the nearby mainland.
Sapphire Isle landscape map showing Evenfall Hall, mountain interior, high meadows and maritime approaches
Tarth’s beauty and isolation come from the same geography: rugged interior terrain surrounded by waters that connect the island to the Stormlands.
Atlas Analysis

An Island House Cannot Be Understood as a Castle Pin

House pages often collapse a family into a single castle icon, but that approach works poorly for House Tarth. The family’s identity is inseparable from an entire island. Evenfall Hall is the seat, yet the Sapphire Isle supplies the distances, coastlines, high ground and maritime separation that make the house distinctive.

The island lies off the Stormlands and is separated from the mainland by the Straits of Tarth. That channel creates a meaningful geographic boundary. A rider cannot simply leave Evenfall Hall and join a mainland road; movement begins with water. Ships, landing places and weather therefore matter in a way they do not for an inland house.

At the same time, Tarth is not culturally detached from the Stormlands. Its rulers participate in the political order centered on Storm’s End, and the island sits close enough to the mainland to remain part of regional campaigns, marriages and noble obligations. The map therefore has to hold two truths together: Tarth is separated by sea, and Tarth is firmly connected to the Stormlands.

The island’s scenic reputation adds another layer. Mountains, meadows, lakes and waterfalls create a physical identity that contrasts with the harsher image many readers associate with storm-beaten coasts. “Sapphire Isle” is not merely a heraldic nickname. It evokes a landscape of striking water and color.

For Brienne of Tarth, this matters. Her origin is not a generic castle somewhere south of King’s Landing. She comes from a defined island world. Understanding that geography makes her departures, loyalties and repeated journeys across Westeros feel more substantial because the reader can see the home to which those journeys are anchored.

Atlas Analysis

Evenfall Hall and the Logic of the Western Coast

Evenfall Hall stands as the political center of House Tarth, and its placement on the western side of the island is the first strong orientation point for a map. Facing the mainland side of Tarth makes practical sense for a noble seat that must remain connected to the Stormlands. Travel, messages and visitors from the mainland are easier to conceptualize when the seat is oriented toward the straits rather than isolated on the far seaward edge.

A castle on an island also performs different functions from one deep inland. It is a residence and fortified seat, but it is part of a maritime transport system. Boats and ships are not optional background details; they are the means by which people, supplies and political obligations cross the water.

The map therefore treats Evenfall Hall as the beginning of several relationships. West lies the strait and mainland Stormlands. South and southwest are the dangerous waters associated with Shipbreaker Bay. Inland rise the island’s hills and mountains. East lies the more open seaward coast. Each direction tells a different story.

The sources do not provide a room-by-room plan or a precise harbor chart for Evenfall Hall, so this atlas avoids turning the castle into an invented architectural diagram. The useful scale is broader. Where is the seat on the island? What waters separate it from the mainland? What terrain lies behind it? Which major mainland power anchors House Tarth’s feudal world?

Seen this way, Evenfall Hall is both remote and connected. Its walls belong to an island, but its western orientation keeps House Tarth facing the political world beyond the straits. That tension between separation and participation is one of the most important ideas the map can communicate.

Atlas Analysis

Mountains, Valleys, Lakes and the Interior of Tarth

The interior of Tarth is unusually important because literary descriptions emphasize natural beauty rather than giving readers a dense list of towns and roads. The island is associated with mountains, hidden valleys, lakes, waterfalls and high meadows. Those descriptions create a clear topographic character even when they do not establish exact coordinates.

For mapping, the safest approach is to show terrain zones instead of drawing fictional mountain chains with invented names. A broad mountain spine can communicate that the island rises significantly inland. Meadow and freshwater zones can indicate the kinds of landscapes described without pretending a particular waterfall sits at an officially mapped latitude.

This matters because terrain affects movement. A mountainous interior concentrates easier travel along valleys, lower passes and coastal routes. It also creates visual separation between communities. An island may be small compared with a kingdom, yet rugged topography can make local journeys slower and more complicated than a flat map suggests.

The high meadows hint at productive land above the coast, while lakes and waterfalls suggest reliable freshwater. Those features help explain why Tarth can support a noble house and population rather than functioning as a barren military rock. The island’s beauty is part of its habitability.

For a reader following Brienne’s family background, this landscape also explains the emotional contrast between Tarth and many places she later encounters. War-torn Riverlands roads, muddy camps and ruined settlements are very different from the remembered beauty of the Sapphire Isle.

A map should preserve that contrast. Instead of filling the island with fabricated villages, ThroneAtlas emphasizes the physical categories the source actually gives us. The result is less superficially detailed but more trustworthy: a mountainous, green, freshwater-rich island framed by difficult seas.

Atlas Analysis

Straits, Shipbreaker Bay and the Maritime Stormlands

Tarth belongs to a maritime region. The Straits of Tarth separate the island from the mainland, while the dangerous waters around Shipbreaker Bay help define the Stormlands coast more broadly. Anyone approaching or leaving the island has to think in terms of wind, sea conditions and coastal navigation.

Shipbreaker Bay has a fearsome reputation, and Storm’s End stands above that hostile seascape on the mainland. Tarth lies within the same broad weather system but is not identical to Storm’s End. The island’s own coastlines and straits create more sheltered and exposed approaches depending on direction.

This helps explain why House Tarth remains strategically relevant despite not controlling one of Westeros’s giant cities. Islands can watch sea lanes, provide anchorages, host local fleets and complicate hostile coastal movement. They are also harder for land armies to reach without ships.

The straits create a particularly useful map relationship. On a large Westeros map, the distance between Tarth and the mainland can look negligible. At local scale, that strip of water is the decisive fact. It determines how a messenger travels, how supplies arrive and how military force crosses between the island and continental Stormlands.

The nearby position of Storm’s End provides the political counterpart. House Tarth’s maritime geography does not remove it from regional feudal ties. The island still exists within the orbit of the Baratheon seat. When larger wars pull the Stormlands into competing royal claims, Tarth’s lords cannot treat the sea as a wall against politics.

That is why the atlas shows water with the same importance as land. For an island house, the sea is road, border and defense at once.

Atlas Analysis

Brienne’s Home Geography and Why It Matters to Her Story

Brienne is the character through whom most readers develop an emotional relationship with Tarth. Yet her narrative spends relatively little time physically on the island. That makes a map valuable because it restores geographic substance to a home that is often remembered through identity, title and conversation rather than continuous on-page action.

“Brienne of Tarth” carries more meaning when Tarth is visible as an island. Every time she travels through the Reach, Riverlands or Crownlands, she is far from a home that requires a sea crossing to reach. Her loyalty to her father, her awareness of inheritance and the expectations placed on her all originate in a bounded place with its own noble history.

The contrast is especially strong during her journeys through the devastated Riverlands. There, roads are unsafe, villages are burned and political control is unstable. Tarth represents a different geographic memory: ordered lordship, natural beauty and an identifiable home seat. The map does not need to romanticize the island to make that contrast apparent.

Her family title also reminds readers that House Tarth is not a landless knightly line. It possesses a seat and territory with regional weight. Evenfall Hall, island terrain and maritime approaches provide the physical basis for that status.

At the same time, Brienne’s story demonstrates how noble identity travels beyond its home geography. She carries Tarth’s name into Renly Baratheon’s camp, Catelyn Stark’s service and later quests across Westeros. The island becomes portable through her.

A dedicated House Tarth map therefore supports both lore and character reading. It answers the simple question of where House Tarth is while also showing why the words “of Tarth” matter every time Brienne introduces herself.

Atlas Analysis

How Confidently Can the Sapphire Isle Be Drawn?

Tarth is a good example of why fictional cartography needs levels of confidence. At regional scale, there is little ambiguity: the island is off the Stormlands coast, associated with the Straits of Tarth, and politically connected to Storm’s End. Evenfall Hall is the family seat on the island, and the interior is described as mountainous and beautiful.

At local topographic scale, the evidence becomes thinner. We know the kinds of landscapes present, but not the coordinates of every lake, meadow or waterfall. Drawing them as exact named points would create a false impression of source precision.

The same is true of roads. People clearly move across Tarth, but canon does not give readers a numbered road network with measured distances. A sensible atlas can infer that lower valleys and coastal approaches matter while refusing to invent a comprehensive highway map.

Adaptation imagery can help readers visualize atmosphere, but it should not automatically override book geography. Screen locations are selected for production needs, and a visual coastline on television is not necessarily a canonical survey of the island in the novels.

This page therefore uses stable anchors and descriptive terrain zones. Evenfall Hall, the straits, Shipbreaker Bay and mainland Stormlands provide strong orientation. Mountain, meadow and freshwater markers communicate landscape character while remaining openly schematic.

That method gives users something genuinely mappable without pretending we possess information George R. R. Martin never supplied. The result is a clearer answer to “where is House Tarth?” and a more honest answer to “what exactly does the island look like?” Those are different questions, and the atlas treats them differently.

Direct Answers

Fast Answers About the Map

Where is House Tarth located?

House Tarth rules the island of Tarth, the Sapphire Isle, off the coast of the Stormlands.

What is the seat of House Tarth?

Evenfall Hall is the ancestral seat of House Tarth.

Is Tarth part of the Stormlands?

Yes. Politically, House Tarth belongs to the Stormlands and is connected to the power centered on Storm’s End.

Why is Tarth called the Sapphire Isle?

The name is associated with the island’s striking natural beauty and blue waters.

What separates Tarth from the mainland?

The Straits of Tarth separate the island from the mainland Stormlands.

Is Tarth mountainous?

Yes. The island is described with mountains, valleys, high meadows, lakes and waterfalls.

Where is Evenfall Hall on Tarth?

It is associated with the western side of the island, facing toward the mainland approaches.

Are all inland features precisely mapped?

No. Their presence is canonical, but exact local coordinates are not fully supplied.

Source Basis

What This Atlas Is Based On

  • George R. R. Martin’s A Song of Ice and Fire novels for House Tarth, Brienne’s identity and references to the island.
  • The World of Ice & Fire and published reference material for Tarth’s place within the Stormlands and its landscape character.
  • Published maps of Westeros for the island’s regional position relative to Storm’s End and the narrow sea.
  • Interior terrain is shown as descriptive zones where exact local coordinates are not established.
Independent fan atlas: ThroneAtlas is not affiliated with HBO, Warner Bros. Discovery or George R. R. Martin. Visual reconstructions are explanatory and should not be read as officially surveyed maps.
Frequently Asked Questions

House Tarth Map FAQs

Where is Tarth on the map?

Tarth is an island off the Stormlands coast, separated from the mainland by the Straits of Tarth.

What castle does House Tarth rule from?

House Tarth rules from Evenfall Hall.

Is Brienne from Tarth?

Yes. Brienne is the daughter of Lord Selwyn Tarth and heir to the island’s ruling house.

Why is Tarth called the Sapphire Isle?

The name reflects the island’s celebrated beauty and the vivid blue waters surrounding it.

Is Tarth near Storm’s End?

It lies offshore from the Stormlands and within the political sphere associated with Storm’s End.

What is the landscape of Tarth like?

The island is described with mountains, hidden valleys, high meadows, lakes and waterfalls.

Can an army reach Tarth by road?

No. Because it is an island, a force must cross the surrounding water by ship or boat.

Does House Tarth control Shipbreaker Bay?

The island lies within the broader maritime geography near Shipbreaker Bay, but the bay is not simply the private possession of House Tarth.

Is the map based on the books or HBO?

The core geography is based on the written canon and published reference material, with adaptation imagery kept distinct where necessary.

Are the mountains and lakes shown at exact positions?

No. Their existence and general landscape character are established, while precise local placement is schematic.

Final Map Summary

Why This Geography Matters

House Tarth is best understood as an island system rather than a castle alone. Evenfall Hall anchors the western coast, rugged terrain shapes the interior, and the surrounding sea both separates the Sapphire Isle from the mainland and connects it to the political world of the Stormlands.

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