What is the geography of sparta?

Sparta is located in the region of Laconia, in the south-eastern Peloponnese. Ancient Sparta was built on the banks of the Evrotas River, the main river of Laconia, which provided it with a source of fresh water. The valley of the Evrotas is a natural fortress, bounded to the west by Mt. Taygetus at 2407 meters and to the east by Mt. Parnon at 1935 meters. To the north, Laconia is separated from Arcadia by hilly uplands reaching 1000 m in altitude. These natural defenses worked to Sparta's advantage and contributed to Sparta never having been sacked. Though landlocked, Sparta had a harbor, Gytheio, on the Laconian Gulf.