Heegaard, O.F. Jakobsen, A.Jensen, T. Lund and M.K. Poulsen. 1994. Conservation of biological diversity in the Sierra Madre mountains of Isabela and southern Cagayan Province, the Philippines. Manila: ...
Nestled in the southern region of Isabela, Sierra Negra Volcano stands majestically over Isabela Island, rising nearly 3,700 feet high. Admirers far and wide are drawn to Sierra Negra to peer into ...
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Oceana lauds plastic ban in Sierra Madre protected areaEarlier this week, Oceana, a renowned marine conservation organization, commended the Protected Area Management Board (PAMB) of NSMNP in Isabela ... our very own Sierra Madre Park by avoiding ...
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