In support to the Provincial Government of La Union (PGLU) #KalikasanNaman campaign, PGLUโs forefront program on fostering ecological integrity and clean and healthy environment, the Office of the Provincial Strategy (OPS) in collaboration with the Environment and Natural Resources Office (ENRO) and Office of the Provincial Agriculturist (OPAg) launched the Thousand Tree Challenge program by conducting tree planting of native trees on September 16, 2021 at Bilagan Road, Santol, and September 20, 2021 at Kudal Park, Tagudtud, Bagulin, La Union.