Calormen is a semi-arid empire in the south of the world of Narnia. Notable geographic features include the Flaming Mountain of Lagour (a volcano) and the Great Desert. The Great Desert is in the northern part of the country, and the difficulty of crossing it discouraged the Calormenes from invading Archenland and Narnia.
The capital of Calormen is Tashbaan, located on an island near the mouth of the River of Calormen, which flows from west to east in the north of Calormen, just south of the Great Desert. Gardens and pleasure houses line the river valley for several miles above the city. North of the river, on the margins of the desert, lie the royal tombs.
The city of Azim Balda, to the south of Tashbaan, is a hub where many roads meet; it hosts the government's postal system.
Narnia never was on very good terms with Calormen, because of Calormen's desire to dominate the countries around it.