savanna (Aw), Steppe (BS), and Humid subtropical (Cwa). The higher elevations of the municipality are slightly cooler and wetter. Hydrography There are 3 important rivers in Aldama: the Tigre river, the Barbarena river and the Carrizal river. Economy Cattle are by far the most important agricultural product of the municipality. The most valuable crops grown are chili peppers, onions, tomatoes, and soybeans. Fishing is important as a source of income and food. Among the products are oysters, huachinango (red snapper), snook, tarpon, shrimp, crab, tilapia, and sea trout. Tourism The municipality has several natural attractions. There are pristine and undeveloped beaches among them: Barra del Tordo, Morón, and Rancho Nuevo. They are very popular among bass fishing aficionados and winter Texans. They are easily reached from Tampico, Monterrey, or Brownsville, TX. Cenotes attract sight-seers and cave divers. External links NASA exploration of Cenote Zacatón – world's 2nd deepest known sinkhole References Municipalities of Tamaulipas