National Geographic : 1898 May
206 CUBA 1827 SECTION AT BARACOA 1. Elevated reef a. Sea-level 2, 3. Bowden Oligocene b. Reef-level 4. Radiolarian beds, probably Vicks- c. Bench burg Eocene d, e. Mountains VALLEYS In the more rugged eastern provinces there are many valleys of wide extent and great fertility. These are numerous also in Santa Clara and Puerto Principe. The most extensive of them, however, is that of the Rio Cauto in Santiago de Cuba. It is situated in a protected position 'between rugged eminences on the north and south and threaded by a navigable river. This valley is densely populated and has been one of the great strong holds of the present uprising. By provinces the relief may be summarized as follows: San tiago de Cuba is predominantly a mountainous region of high relief, especially along the coasts, with many interior valleys. Puerto Principe and Villa Clara are broken regions of low moun tain relief, diversified by extensive valleys. Matanzas and Ha bana are vast stretches of level cultivated plain, with only a few hills of relief. Pinar,del Rio is centrally mountainous, with fertile coastward slopes. DRAINAGE The drainage of Cuba is abundant, varying in character in different parts of the island. Considering the limited catch ment areas, these streams are remarkably copious in volume. In the plains of the central and western provinces the streams flow from the central axis toward the corresponding coast and have opalescent waters, like those of the limestone springs of Texas and Florida. These streams run through widely sloping valleys, with only slightly indented streamways, and are remark ably free from lateral ramifications. Canyons are not developed until they reach the abrupt plateau edge of the north coast.