The best-known among them are Puerto Deseado (Port Desire) at the mouth of the Deseado river (1253 m.), Santa Cruz, at the mouth of the Santa Cruz river (1481 m.), and Ushuaia, on Beagle Channel, Tierra del Fuego.
Yendegaia, Lapatia and Ushuaia Bays are among the larger.
Ushuaia is the site of the capital of the Argentine Territory, and has shown considerable development, having regular communication by monthly steamers with Buenos Aires, while smaller steamers serve the different settlements along the coast.
At Ushuaia ten years' meteorological observations2 have shown a mean annual temperature of 42.84° F., with a winter mean of 34.7° and a summer mean of 50.18°.
The precipitation during ten years at Ushuaia has been observed to average 24.8 in.