=Chubut=, south of Rio Negro, also extends across from the Atlantic to Chile, with Santa Cruz on the south. The central part has little vegetation but in the west are fertile valleys, and good grazing for cattle and sheep. There are millions of each, and many horses. Cereals and alfalfa are also raised in the east, with temperate zone fruits and berries. Near the oil fields of Comodoro Rivadavia is excellent farming land under cultivation. In this section there is now great activity on account of the petroleum development; some railways have been constructed and one is expected soon to cross the country. There is trade in wool and hides; gold, copper, and salt exist. =Santa Cruz=, the largest division next to Buenos Aires, south of Chubut, has the Atlantic on the east and Chile on the south and west. The northwest is rather barren and rocky, with dense forests farther south; but near the coast and south of the Santa Cruz River are fine pastures supporting great flocks of sheep. There are many rivers and lakes, several, like the Buenos Aires, on or near the Chilian boundary. Wool, frozen mutton, and timber are exported. =Tierra del Fuego= has the Atlantic Ocean on the north, east, and south, with the Chilian part of the island on the west. This triangular part of the island is mountainous, but has sheltered valleys, good pasturage, and vast forests with excellent timber, to some extent exploited. There are large flocks of sheep; the gold and copper deposits are unworked except for washing the sands. The capital, Ushuaiá, on the Beagle Channel, is a small penal colony. CHAPTER XXXVI ARGENTINA: SEAPORTS AND INTERIOR TRANSPORTATION Argentina has a long sea coast, about 1300 miles, with a number of gulfs and good harbors. The ports of Buenos Aires and Ensenada, both constructed at great expense, on the wide La Plata River, may be regarded as seaports. The best natural harbor is 500 miles by sea south of Buenos Aires, Bahia Blanca, where the Government has built a port and naval station, and the harbor is accessible to large ocean vessels. Farther south are other ports, not greatly frequented on account of lack of population, but of growing importance. North of Buenos Aires are river ports, some of these visited by ocean steamers, others by river boats only, a few of the latter 1000 miles from the sea. The river ports above Buenos Aires with facilities for ocean liners besides Rosario, are Campana, Zarate, Ibicuy, San Nicolas, and Santa Fé (Colastiné). SEAPORTS