Area : 2,449.61 sq. km.
Region : CAR and Region 1
Provinces : Benguet, Ilocos Sur and La Union
Towns/Cities : 2 Cities and 31 Municipalities
Barangays : 547
Outlet : West Philippine Sea
Est. Pop’n : 715,334
RDC Reso. : RDC-1 Resolution No. 100, s. 2019
Forestland : 1,239.92 sq. km.
A&D : 759.97 sq. km.
Proposed Investment (Total) : PHP 32,657,682,233
The Cluster 1 River Basin is composed of three (3) principal river basins and three (3) minor watersheds which are located at the northwest of Philippines and west of Luzon Island. The cluster is composed of Amburayan, Baroro, and Bauang Principal River Basins and Busilac, Darigayos, and Maragayap Minor Watersheds. All of these drain to the West Philippine Sea. The principal river basins comprise 88.9% (199,969 hectares) of the aggregated area of the cluster while the minor watersheds constitute 11.1% (24,992 hectares).
"A sustainable, waste-free, and climate-resilient Cluster 1 River Basin maintaining a well – balanced ecosystem to provide well-utilized water resources, sufficient livelihood, and empowered community through holistic approach management."
"Conserving and protecting the Cluster 1 River Basin through sustainable watershed management, capacity building and policy development.”