Mountains & Volcanoes
Mountains, peaks, ridges, and active or dormant volcanoes — including Mayon, Pinatubo, and Taal.
118 articlesArticles
Lucsuhin Natural Bridge: Geology, Discovery and Conservation in Cavite
Lucsuhin Natural Bridge in Silang, Cavite, is the first large natural bridge reported in the Philippines, discovered in 1910.
Hinagdanan Cave: Geology, Discovery and Conservation in Bohol
Hinagdanan Cave in Dauis, Bohol, is a limestone cavern with a sunlit lagoon, discovered when a stone was thrown into a hillside hole.
Guyangan Cave System: Archaeology and Heritage in Banton, Romblon
Archaeological site in Banton, Romblon, featuring the oldest known ikat textile in Southeast Asia.
Casecnan Protected Landscape: Geography, Hydroelectric Development and Conservation
Protected area in Nueva Vizcaya, Quirino and Aurora protecting the Casecnan River watershed and supporting hydroelectric power generation.
Sierra Madre: Geography, Ecology and Conservation of Luzon's Eastern Range
The Sierra Madre is the longest mountain range in the Philippines, spanning 540 km along Luzon's eastern coast and serving as a critical bio...
Minori Cave: Archaeology and Geology in Peñablanca, Cagayan
Minori Cave in Cagayan is an archaeological site with Paleolithic and ceramic period artifacts, part of the Callao limestone formation.
Pantuwaraya Lake National Park: Geography, Conservation and Hydroelectric Significance
Pantuwaraya Lake National Park in Lanao del Sur, established in 1965, protects a 20-hectare watershed vital to Mindanao's hydroelectric powe...
Northern Luzon Heroes Hill National Park
National park in Ilocos Sur, Philippines, established in 1963 covering 1316 hectares of coastal mountain scenery.
Callao Cave: Archaeology, Geology and the Discovery of Homo luzonensis
Callao Cave in Peñablanca, Cagayan, is a show cave and archaeological site where Homo luzonensis fossils were discovered.
Fuyot Springs National Park: Geography, History and Recreation in Isabela
Fuyot Springs National Park is a protected area in Isabela, Philippines, established in 1938, featuring caves, waterfalls and the Ilagan San...
Philippine Rise (Benham Rise): Geology, Sovereignty and Strategic Significance
The Philippine Rise, formerly Benham Rise, is an extinct volcanic ridge in the Philippine Sea. It is a key feature of the country's continen...
Central Panay Mountain Range: Geography, Biodiversity and Indigenous Heritage
The longest mountain range in the Visayas, spanning 170 km across Panay Island with rich biodiversity and indigenous communities.
Zambales Mountains: Geography, Geology and Ecology of Western Luzon
Overview of the Zambales Mountains in Luzon, covering geology, biodiversity, and the impact of Mount Pinatubo.
Caraballo Mountains: Geography, Watershed and Ecology in Central Luzon
The Caraballo Mountains in Luzon form the source of the Cagayan River and mark the boundary between the Philippine and Sunda Plates.
Kitanglad Mountain Range: Geography, Conservation and Biodiversity in Bukidnon
The Kitanglad Mountain Range in Bukidnon is a protected area hosting the Philippine eagle and major river headwaters.
Malinao Volcano: Geology, Geothermal Energy and Volcanic History
Malinao Volcano is a stratovolcano in the Bicol Region, Philippines, known for its geothermal activity and the Tiwi Geothermal Power Plant.
Tagaytay Ridge: Geography, Geology and Significance
Geography and geology of the Tagaytay Ridge in Cavite, Philippines, forming the northern rim of the Taal Caldera.
Mount Apo: Highest Peak, Ecology and Conservation in Mindanao
Mount Apo is the highest mountain in the Philippines, a dormant stratovolcano in Mindanao home to the Philippine eagle and significant geoth...
Mount Ragang: Geology, Eruptions and Significance in Mindanao
Mount Ragang is an active stratovolcano in Lanao del Sur, Mindanao. It is the seventh highest peak in the Philippines and the most active vo...
Mount Matutum: Volcanic Geography and Ecology in South Cotabato
Mount Matutum is an active stratovolcano in South Cotabato, Mindanao, rising 2286 m. It hosts the Philippine eagle and features a breached s...