Geography of Trinidad and Tobago passage. Trinidad is traversed by three distinct mountain ranges that are a continuation of the Venezuelan coastal cordillera. The Northern Range, an outlier of the Andes Mountains of Venezuela, consists of rugged hills that parallel the coast. This range rises into two peaks. The highest, El Cerro del Aripo, is high; the other, El Tucuche, reaches . The Central Range extends diagonally across the island and is a low-lying range with swampy areas rising to rolling hills; its maximum elevation is . The Caroni Plain, composed of alluvial sediment, extends southward, separating the Northern Range and Central Range. The Southern
Sankamphaeng Range the southern end of the Dong Phaya Yen Mountains, which run roughly in a north-south direction at the southwestern boundary of the Khorat Plateau. To the east this range connects with the Dângrêk Mountains, a longer system running in an east-west direction that stretches into Laos. The southern mountainsides of the range drain into the Prachinburi River. The range is divided in two compact massifs where the highest elevations are in the west. The highest point in the Sankamphaeng Range is the 1,351 m high Khao Rom, also known as Khao Khiao. Other peaks are 1,326 m high Khao Laem,