The valley is flanked on the eastern side by the Douglas Ranges, the ridge nearest the valley known as Durieu Ridge, the southern point of which forms Dewdney Peak. The valley includes the area occuped by Davis Lake Provincial Park and Mount St. Benedict in the north and that of Cascade Falls Regional Park in the northeast. The valley measures about 12.5 kilometers long from Davis Lake to Hatzic Lake, and about 2.5 kilometers wide at Durieu. The valley is home to approximately 1,300 people.