Faerûn is a major continent on the planet Toril.
Someone should have dared, long ago, and done so as often as it took to break you of this serenely wrong view of the ways of the world. Hear this, Narantha, and hear it well: Faerûn is not going to change to your will. Either you must change to dwell in it, or it will break you.
— Florin Falconhand of the Knights of Myth Drannor
Geography
The continent included terrain that was as varied as any other. Besides the exterior coastline to the west and south, the most dominant feature on the continent was the Sea of Fallen Stars. This was an irregular inland sea that kept the interior lands fertile, connected the west and east regions of Faerûn and served as a major trade route for many of the bordering nations.
Next in significance was the Shaar, a broad region of grasslands in the south that, together with the Lake of Steam, separated the area around the inland sea from the coastal nations at the southern edge of the continent. To the east, Faerûn was bordered by a vast region of steppes from Kara-Tur, and in the north were massive glaciers and tundra. South of the continent, separated by the Great Sea, was the sub-tropical land of Zakhara.
Northwest Faerûn
A region of wilderness, difficult winter weather, Orc hordes, and barbarian tribes, this region was generally referred to as "The North", which also contained most of the "Sword Coast North". It was a mostly untamed region that lay between the large Anauroch desert in the east and the expansive Sea of Swords in the west, north of the High Moor.
North Faerûn
This region stretched from the wide Anauroch desert in the west to the eastern edge of the inland Moonsea, in the northern region of the continent. It was a region of contrasts, containing both deserts, rich farmlands, inland seas, and mountains.
Northeast Faerûn
This remote area began in the cold, forbidding lands along the great ice sheets and continued south toward the northeastern shores of the Sea of Fallen Stars, collectively known as the Cold Lands. It was bordered on the west by the mountain-hemmed land of Vaasa and stretched east to the vast steppes of the Hordelands.
West Faerûn
This region included the nations south of Waterdeep and north of the Unknown that bordered along the Sea of Swords. It encompassed both the majority of the Sword Coast and the Lands of Intrigue.
Interior Faerûn
With the exception of the Unknown , these lands lay along the irregular coastline of the western Sea of Fallen Stars. In the north, the Dragonmere arm of the sea extended far to the west, ending close to the @Western_Heartlands. To the south, the Unknown formed a second arm leading to the southwest.
East Faerûn
Most of the nations in this region bordered the eastern expanses of the Sea of Fallen Stars. Here the sea formed a long arm that travels to the east before turning south to become the Alamber Sea. The northern nations of this mysterious area were termed the Unapproachable East and the southern nations the Old Empires, and, for a time, the Empires of the Alamber Sea.
Southwest Faerûn
This region lay along the great Chultan Peninsula that jutted out toward the west. The waters to the north were named the Unknown, a body bounded by Calimshan to the north and joined to the Lake of Steam through the Straits of Storm. To the south of the land was the @Great_Sea.
South Faerûn
The Shining South lay to the south of the regions around the Sea of Fallen Stars, being somewhat isolated by the Lake of Steam in the west, and the vast length of the Shaar. It was bordered along the south by the Great Sea, to the west by the Chultan Peninsula region, and in the east by Luiren.
Southeast Faerûn
These lands lay to the south and east of the grassy plains known as the Shaar, along the shores of the Great Sea opposite the land of Zakhara.
Underdark
The immense complex of caverns and passages that lay beneath many parts of the continent of Faerûn.