REPORT BY GEORGE M. DAWSON. 23 To-tuk Lake towards Cluscus was followed. The country passed over is a Country between succession of ridges, running more or less regularly in east and west Choo-tan-li and bearings, separated by hollows with swamps and lakes. Their elevation varies from 4,200 to’ about 4,500 feet, and their northern slopes are densely covered with forests of tall straight black spruce, mingled with balsam spruce (Abies lesiocarpa) resting on a peaty and mossy soil, on which patches of snow were found lying in the deep shade of the trees on the seventh of June. The southern slopes are more openly wooded, but here tangled and almost impenetrable windfalls occur. On this high country the rock is seldom seen, there being apparently a great thick- ness of drift. Very ‘large boulders are scattered over the surface in ) many places. Valley of the Blackwater north of the Cluscus Lakes.—This part of the the Blackwater Blackwater Valley, like most of its length between this place and the ee bridge at the Lower Cajion, has much resemblance to that of the Ku-chen-i-ko above described, but is on a larger scale. The north slope is generally bare, or but lightly tree-clad, with bunch-grass, wild onions, bearberry, vetch, strawberry and Galium boreale, while thickets of willows and dwarf-birch (Betula glandulosa) fringe the stream. Thesouth bank presents a somewhat similar assemblage of plants, but is much more thickly timbered, with scrub pine and poplar, and occasional groves of black spruce. The appearance of the river valley is pleasing, and there is abandance of good grazing for animals, which the winter snows can not be deep enough entirely to cover, as the Indians of Cluscus Lake own a number of horses which are allowed to live as best they can at all seasons. The sloping sides of the valley are generally steep, but show little rock, being covered with terraced drift material. At this place, a very conspicuous bench may be traced, running for miles along the valley . at an elevation (at Cush-ya, sometimes called Upper Euchinico Lake) of 296 feet above the river, or 3,476 feet above the sea. The river itself flows rather rapidly between the long lake-like expansions, which here characterize it, and add greatly to the beauty of the landscape. Whether these lakes are held in by rocky barriers or dammed merely by drift material, I have been unable to satisfy myself. About one mile above Cush-ya Lake, the whole volume of the river Waterfall. descends at a leap about fifteen feet over a bed of grey columnar basalt. The waterfall is symmetrical and curtain-like, with dark amber-coloured water. Two miles north of Cush-ya Lake, at an elevation, according to the Kuy-a-KuzLake. | railway maps, of 500 feet above it, is Kuy-a-kuz Lake, lying nearly east