It consists of 127 human and animal figures engraved on the rockwall probably carved during the late Neolithic, or before 2000 BC.

Events/Artifacts (north to south) Events/Artifacts Artifacts The existence of a rock shelter was reported to the National Museum by the late National Artist of the Philippines Carlos V. Francisco in March 1965 during a field trip with several boy scouts along the boundaries of Angono, Binangonan and Antipolo of the province of Rizal.

It was included in the list of National Cultural Treasures in 1973 and World Inventory of Rock Art in 1985.

In 1996, The World Monuments Fund included Angono Petroglyphs on its list of preservation projects and has helped with the installation of a drainage system and assigned a caretaker to protect the site.

[2] From October to November 1965, archaeological excavations, headed by Alfredo Evangelista, was done on the area of the rock shelter.

The older Phase 1 is composed of around 51 geometric shapes; including 11 disembodied vulva forms that are depicted as bisected triangles or ovals, small holes (cupules), and at least one human figure with bent elbows and knees.

And though the site provides "visitor books" for guests to draw upon, these are rarely used as they are safeguarded by the National Museum staff.

[4] Its collections include remains of giant turtle, tusks, fossils, molar of Elephas sp., tradeware ceramics and paintings.