The Sangkulirang-Mangkalihat Karst is a karstique area in Sub Kelay, Biatan, Talisayan, Batu Putih, and Biduk-biduk Berau districts of East Kalimantan province on the island of Borneo in Indonesia.

It covers an area of 105,000 hectares, including the Mangkalihat Peninsula.

In May 2015, it has been nominated for inclusion in the UNESCO World Heritage Site list.

The paintings were researched extensively by Indonesia's Heritage Preservation Hall (BPCB) for its preservation.

Even from the region precisely in Beriun Mountain, there is orangutan habitat.