Southeast across the Taseko Lakes is Taseko Mountain , the highest summit between those lakes and the Fraser River, while directly south beyond Yohetta Valley (a deep valley which connects the relative lowlands around Chilko and Taseko Lakes is the massif containing Monmouth Mountain . Southwest across Chilko Lake is Mount Good Hope and due west, also across Chilko Lake, is Mount Queen Bess , the highest peak east of the Homathko River before the Waddington Range massif, which is at the core of the range and contains Mount Waddington .