Carved
from out of the region where the headwaters of Cagayan River
descend to the Cagayan plains, Quirino is the newest of the
five provinces in Cagayan Valley. It composes the municipalities
of Aglipay, Cabarroguis, Diffun, Maddela, Nagtipunan and
Saguday. The province lies in the southern portion of Cagayan
Valley, bounded by Isabela on the north, Aurora on the southeast
and Nueva Vizcaya on the west. The Sierra Madre Mountain
Range runs along the border with Aurora while the Caraballo
Range dominates the southwest. About 80% of its area is mountainous.
The flat lands of the northwest form part of the Cagayan
Valley plains. It is here that the main population centers
are found. There is no marked rainy season although the province
is dry between the months of December and May. - Source:
http://elgu2.ncc.gov.ph/quirino/
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