Rock Our World! Philippine Prehistoric Drawings
With 22 known rock art sites in the country, the Angono-Binangonan Petroglyphs remains as the best-known site since its discovery in 1965. Some other sites, mostly archaeological, are found in Peñablanca, Cagayan; Anda, Bohol; Alab, Bontoc; and the Pälaqwan cave drawings in Rangsang, Palawan.
