Nizao River

The Nizao River is one of the Dominican Republic's most important rivers. Along its path, three hydroelectric power/electrical plants have been built, the largest of which is Jiguey Dam- an arch-gravity dam on the Nizao River in the Dominican Republic's San José de Ocoa Province, about 32 kilometers (20 miles) west of San Cristóbal. It has dried as a result of a decade of aggregate extraction. A top Dominican ecologist, Luis Carvajal, estimated that restoring the river would cost RD$350 million per kilometer.

On 14 April 1655, Robert Venables landed at the mouth of the Nizao River with a contingent of the English New Model Army in preparation for a land attack on Santo Domingo. Vice-Admiral William Goodsonn arrived with an auxiliary "sea regiment" of sailors. During two Spanish ambushes, their superior discipline enabled them to save the other soldiers from disaster. The siege was abandoned after two failed assaults.

Length: 133 km (83 mi)