Location from A Song of Ice and Fire by George R.R. Martin
The gold-rich hills ruled by House Lannister — a territory whose mineral wealth has made its lords the richest and most dangerous players in Westerosi politics.
The Westerlands are defined by one thing: gold. For centuries, the mines beneath Casterly Rock and throughout the hills produced the wealth that allowed the Lannisters to buy what they couldn't conquer and conquer what they couldn't buy. Lannisport is the second-largest city in Westeros, a prosperous harbor that funds the Lannister fleet. The people here are proud of their association with the richest house in the realm, though that pride often manifests as arrogance that makes them unwelcome elsewhere. The secret that the mines have run dry threatens to unravel everything — the Lannister mystique depends on the perception of infinite wealth, and perception is all that's left.
Rolling hills studded with gold and silver mines, the landscape greener and gentler than the North but marked everywhere by mining operations. The Sunset Sea glitters to the west, and Casterly Rock looms over Lannisport, the region's great port city.
Also known as: the Westerlands, Lannister lands, the golden hills