Lurrath sits within Eraztumen (Basque eraztun "ring" + mendi "mountain"), the ring of peaks that is the city-state's own territory and natural wall. The inside of the ring is Lurrath's ground; the ring itself is the border. City and territory grew together inside the mountain ring.
Along Brauogi's central-northern spine, Iturmen (the source-mountain spine) and Iturburu (the source-lake under its tallest peak) belong to Sugeiturri, the source-country: the wellhead where nearly every river in Brauogi rises, held by the River Houses under the crown at Iturburu. Where Lautara keeps its mythic-pilgrim Helgafjall and its working lake apart, Brauogi's Iturburu is both at once: the livelihood-lake that waters the breadbasket and the holy mother-lake where the Dragonet faith's wyrm-current gathers, one water doing both.
Sarrum is the Steadfast, and his portfolio is the whole of worked earth: Stone and Harvest, Endurance and Burden, and the Confidence, Duty, Vigil, and Metal the ground asks of those who live on it. Three peoples carry those faces between them, and Brauogi is the cooperative domain the chronicles name because grain, herd, and ore each need the other two.
The Minotaurs bear the stone. Sarrum is depicted as a Minotaur, and his cousins are the backbone of the breadbasket: the grain-farmers and the stonecutters, the wall-builders and the road-layers, immovable and slow to anger and slower to forgive. A Minotaur is the one who carries the load others set down, and whose patience reads to outsiders as the Confidence of the whole domain made flesh. They grow the bread and raise the walls, and they do both as if the work were meant to outlast them, which it is. Their full-expression home is Greenward, the central breadbasket-basin they reclaimed from the Corrupted God's Dark-Era blight, furrow by furrow.
The Kholo keep the vigil. Brauogi's herder-clans, matriarchal by disposition, who keep the flocks where the earth that grows grain also grows pasture. They drive the herds across the river-margins and the upland grass, meat and milk and leather to the Minotaurs' bread and stone. Theirs are the Vigil and the Duty: the night-watch over the herd against wolf and weather, and the duty to herd and clan-line that no Kholo sets down lightly.
The Dragonet work the metal. The deepest of Brauogi's peoples are the indigenous wyrmkin, whose lineages root in the old substrate where stone gives way to metal. They are the miners and the metal-wrights, the ore-finders and smiths who bring the deep up into the domain's hands. Their wyrm-blood remembers an age before the bread, and most Dragonets feel a natural affinity toward Zaharsuge, whom their tradition holds as progenitor; the old memory and the older god are the colour under the craft rather than the trade itself. Their old-blood heartland is Sugeiturri, the northern source-country, where the River Houses keep the springs and worship Zaharsuge as the living current. The breadbasket eats on Minotaur grain, but it ploughs, reaps, shoes, and shears on Dragonet metal.
Cooperative by need. None of the three is whole alone: the fields want iron and beasts, the clans want grain and gear, the deep-work wants bread and leather and labour. Sarrum's earth gives each people a third of what a living needs and none of them all of it. The rivers were always worth more shared than fought over.