Alagalla (, literal translation: Tuber rock) Mountain Range is situated at the boundaries of the Central and Sabaragamuwa Provinces in Sri Lanka. Along with the surrounding () also known as Bible Rock, (), (), (), Knuckles Mountain Range and Hanthana () Mountain Range, Alagalla mountain has served as a natural defense location for nearly five centuries (1505-1948) against the Portuguese, Dutch and English invasions aimed at the Kandyan Kingdom.