Mount Dulang-dulang Mount Dulang-dulang Mount Dulang-dulang, dubbed by Filipino mountaineers as "D2", is the highest elevation peak in the Kitanglad Mountain Range, located in the north central portion of the province of Bukidnon in the island of Mindanao. It is the second highest mountain of the Philippines at above sea level, second only to Mount Apo of Davao at and slightly higher than Mount Pulag of Luzon, the third highest at . The mountain is regarded by the Talaandig tribe of Lantapan as a sacred place. It is also within the ancestral domain of the tribe. Mount Dulang-dulang, similar to other peaks
Apo Reef and is about in depth. Likewise, reef limestone and coralline sand on the east and southeastern sides dominantly underlie the area. The main geographical feature of Apo Reef is submerged, but three islands mark it on the surface: the Apo Island, Apo Menor (locally known as "Binangaan") and Cayos del Bajo ("Keys of the bank", locally known as "Tinangkapan"). The islands are uninhabited. Since the declaration of “no-take-zone” policy at Apo Reef Natural Park in 2007, only protected area personnel and members of the Task Force MARLEN (Marine and Apo Reef Law Enforcement for Nature), who are task to implement