The Rio Bicol, which rises in Lake Bato and flows N.N.W.
Many miles of inland water communication with small boats or bamboo rafts are afforded by the Pampanga, Agno, Abra, Pasig and Bicol rivers in Luzon, and by the Agusan and Rio Grande de Mindanao in Mindanao.
The great bulk of the population, approximately 90%, is included in seven Christian tribes as follows: Visayan, 3,219,030; Tagalog, 1,460,695; Ilocano, 803,942; Bicol, 566,365; Pangasinan, 343,686; Pampangan, 280,984; and Cagayan, 159,648.
IRIGA, a town of the province of Ambos Camarines, Luzon, Philippine Islands, on the Bicol river, about 20 m.
Of the province of Ambos Camarines, Luzon, Philippine Islands, on the Bicol river, about 22 m.