Khun Chae National Park is located about northeast of Chiang Mai in the Wiang Pa Pao district of Chiang Rai Province. The park's area is . Khun Chae Park is located in the Khun Tan Range and is home to the range's highest peak, Doi Lang Ka at . The park adjoins two other national parks: Chae Son National Park and Mae Takhrai National Park.