In Pili, the province's municipality and provincial capital, N673 starts at the intersection of N1 (Maharlika Highway) on its northern terminus and ends at the intersection of N630 (Governor Jose Fuentebella National Highway) as its southern terminus. The entire numbered route is known as Pili Diversion Road, where it bypasses the town proper which Maharlika Highway leads.[1][2]
Samar
In Calbayog, N673 connects from N1 (Maharlika Highway) to Barangay Trinidad. The entire numbered route is known as Old Calbayog National Route, Calbayog Old National Route, or Old National Road, which parallels the runway of Calbayog Airport. After intersecting a narrow street in Barangay Trinidad, the road then continues south unnumbered up to Barangay Basud.[1][3]
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