Experts have identified over a dozen other geological sites in Northern Samar province after the recent recognition of Biri Rocks as the Philippines’ newest National Geological Monument (NGM).

The Northern Samar provincial government reported on Thursday that these additional geosites are spread across 11 towns in the province.

“These sites, rich in geological and ecological value, are now being considered as potential additions to the country’s list of geological monuments,” the provincial government said in a statement.

These potential geological gems include the Pinusilan Lagoon and Naputad Rock in Mapanas town; Mampugay Falls, Sleeping Lion, and Rakit-dakit 2.0 in Palapag; Malobaroc Beach and Mombon Sandbar in Mondragon; Lulugayan Falls in Bobon; Macaningning Islets; and Baitan Cave and Rocks in Laoang.

Other sites are Pinipisakan Falls in Las Navas; Hilulugayan Falls in Silvino Lobos; Busay Falls in San Isidro; Bantayan Tidal Channel and Beach in San Roque; Imaga Rocks in Allen; and Miol-biol Rocks in Lavezares town.

“While the recognition of Biri Rocks is a major achievement, the geological wonders of Northern Samar do not end there… The newly identified geosites represent a diverse array of natural formations — from pristine waterfalls to secluded caves, beaches, and unique rock structures,” the provincial government said.

Experts found the potential of these sites through a recent week-long exploration led by the National Committee on Geological Sciences (NCGS), in collaboration with experts from the Mines and Geosciences Bureau, the University of the Philippines–National Institute of Geological Sciences, and the National Museum of the Philippines.

Recognized as the newest NGM in June 2025, Biri Rocks in Northern Samar is composed of seven rock islets with unique geological features. (PNA)