Bernardo Carpio is a legendary figure in Philippine mythology who is said to be the cause of earthquakes. There are numerous versions of this tale. Some versions say Bernardo Carpio is a giant, as supported by the enormous footsteps he has reputedly left behind in the mountains of Montalban. Others say he was the size of an ordinary man. Accounts of the stories have pre-colonial origins, but the name of the hero was Hispanized during the Spanish colonization. The original name of the hero has been lost in time. All versions of the story agree that Bernardo Carpio had a strength that was similar to that of many strong men-heroes in Asian epics, such as Lam-ang.

The Pamitinan Protected Landscape is a Philippine protected area of approximately 608 hectares in the Sierra Madre mountain range, just 34 kilometres (21 mi) northeast of Manila. It contains and protects the Montalban Gorge formed by the Marikina River that separates Mount Pamitinan and Mount Binacayan in the municipality of Rodriguez in Rizal. Established in 1996 through Proclamation No. 901 issued by President Fidel Ramos, the park is originally a component of the Mariquina Reserve founded in 1904 to protect the watershed of the Marikina River that supplied water to the city of Manila from the Wawa Dam located just above the Montalban Gorge in the early 1900s.