The World of Ice and Fire - The Westerlands These are rich lands, temperate and fruitful, shielded by high hills to the east and south and the endless blue waters of the Sunset Sea to the west. The Westerlands are a place of rugged hills and rolling plains, of misty dales and craggy shorelines, a place of blue lakes and sparkling rivers and fertile fields, of broadleaf forests that teem with game of every sort, where half-hidden doors in the sides of wooded hills open onto labyrinthine caves that wend their way through darkness to reveal unimaginable wonders and vast treasures deep beneath the earth. The Lannisters are the ruling house of The Westerlands which have been historically rich in natural resources.