Northern Sierra Madre Natural Park in Isabela Province

The Northern Sierra Madre Natural Park stands as the Philippines’ largest protected area, spanning an expansive 359,486 hectares. Located within the extensive Sierra Madre mountain range, which claims the title of the country’s longest mountain range, this natural park is a sanctuary of biodiversity, awe-inspiring landscapes, and a crucial guardian of the Philippines’ natural legacy.

Distinguished by its dense tropical forests, teeming wildlife, and the convergence of rivers and reefs, the park boasts a topography marked by towering mountains with steep central slopes and lower hills gradually sloping towards the coast. The highest peak, Mount Cresta, stands proudly on the western flank, reaching an elevation of 5,486 feet.

Within the park’s embrace flourishes a diverse array of plant and animal species, many of which are exclusive to the region. Serving as a haven for threatened species such as the Philippine crocodile, the Philippine eagle, the green sea turtle, the pitcher plant, and the jade vine, the natural park plays a pivotal role in conservation efforts.

The establishment of the park as a natural haven was formalized on March 10, 1997, through the signing of Proclamation No. 978. It operates as one of the nation’s ten priority protected areas, overseen by its Protected Area Management Board led by the Regional Executive Director of the Department of Environment and Natural Resources for Region II. The preservation of the Northern Sierra Madre Natural Park is paramount in sustaining ecosystems and safeguarding the rich biodiversity that calls this majestic landscape home.

Northern Sierra Madres Natural Park Location

The Northern Sierra Madre Natural Park is located in the northeastern part of Luzon, Philippines. It covers the city of Ilagan, and the municipalities of Cabagan, Dinapigue, Divilacan, Maconacon, Palanan, San Mariano, San Pablo, and Tumauini in the province of Isabela.

Visitors to the Northern Sierra Madre Natural Park can explore its trails, appreciate the rich flora and fauna, and experience the beauty of unspoiled nature. The park also plays a crucial role in watershed management, providing water resources to surrounding communities.

Northern Sierra Madres Natural Park Location Map


Cover photo by Jeffrey B

Additional Information

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