APARRI, a town of the province of Cagayan, Luzon, Philippine Islands, on the Grande de Cagayan river near its mouth, about 55 m.
High, Between the Sierra Madre and Caraballos Occidentales is the valley of the Cagayan river, about 50 m.
The Cagayan river, in north Luzon, is the largest in the archipelago.
Approximately one-half of the tobacco, 77,632 acres yielding 37,485 lb in 1902, is grown in the valley of the Cagayan river, and most of the remainder, which is of inferior quality, in the neighbouring provinces of Union, Ilocos Norte and Abra, and in Panay, Cebu, Masbate and Negros.
It is grown most extensively in the valley of the Cagayan river, in 1902 the total acreage in the archipelago was about 254,470.
The Cagayan river, which is navigable for native boats 160 m.
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.
Most of the Ilocanos are in the western half of north Luzon; most of the Bicols in south Luzon; most of the Pangasinans in the province of Pangasinan, which borders on the Gulf of Lingayen; most of the Pampangans in the province of Pampanga, which borders the north shore of Manila Bay; and most of the Cagayans in the valley of the Cagayan river.