The land is characterized as mountainous with many steep cliffs. It is home to Mt. Timbak, the third highest mountain in Luzon. The second highest point in the Philippine Highway System is also located at Barangay Paoay along Halsema Highway, at above sea level. It held formerly the title as the highest point in the Philippine Highway System since World War II until early 2019. This is after the validation and assessment conducted by the Department of Public Works and Highways - Cordillera Administrative Region (DPWH-CAR) Regional Office last January 2019 declaring a new highest point at 2,428.66 meters (7968.045 feet) along the Kiangan-Tinoc-Buguias Road in Tinoc Town some 55 Kilometers east via Atok, Benguet.