Information server for southern Guam natural resources
Cetti watershed is located in the south of Talofofo Village, occupying a small southern part of Agat Village and a small northern part of Umatac Village. It has a drainage area of 3.07 sq. miles. The main rivers in the watershed include Cetti River, Agana River, Sella River, Asmafines River and Madofan River with approximate lengths of 1.32 miles, 1.21 miles, 1.03 miles, 1.02 miles and 0.76 mile respectively. Cetti River discharges to Cetti Bay, Sella River and Asmafines River discharge to Sella Bay, and Agana River and Madofan River discharge to the Philippine Sea in the north of Sella Bay. The highest elevation is about 1322 feet (403 meters) in the northeast of the watershed. The vegetated area including forest is about 97.4%. This is a largely undeveloped watershed. The soil types mainly include Ylig clay, Akina silty clays, Pulantat caly, Inarajan clay, badland, Agfayan clay, and urban land complex.
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