The Okanagan Highland and parts of the Shuswap Highland to the west of the main range are technically classified as part of the Monashees, however, they may also be considered part of the Interior Plateau. The Okanagan Highland lies between the Kettle River and Okanagan Lake, south of the Shuswap River. Within this area, the small Sawtooth Range lies between the uppermost Shuswap River to the east and Mabel Lake to the west. The portion of the Shuswap Highland south of the North Thompson River to the Okanagan Highland, may also be included.