Open 32.25
Close 32.20

Unong Mine Rehabilitation

Unong Mine in Barangay Tinogboc was Semirara Island’s first open pit coal operations. It produced 12 million metric tons of coal in 1983 until 2000.


More than a decade since it closed, the mine area now has a lake that hosts meter-long eels, tilapia, and even some hawkbill sea turtles released in its brackish waters in 2011. The rim has become a wide band of green trees that line a 3-kilometer circumferential road.