Forests The forests of the North Pacific Region span the full range of northern forest types from the western slopes of British Columbia, through the great Cordilleran Plateau, to the foothills and plains on the eastern side of the Rocky Mountains. To the north, the forests extend through sub-Arctic areas finally to disappear in the barren lands of the lower Mackenzie Valley and in northern Yukon Territory. The “wet belt” of the Pacific slope of British Columbia is known as the world’s greatest coniferous region. The Cordilleran plateau is characterized, according to climatic conditions, by both “wet belt” and “dry belt” forests. To the east of the Rocky Mountains, the North Pacific forests merge into the great forest belt that stretches from coast to coast across the northern part of Canada. To illustrate the range and diversification of the present cover a map of formations over the North Pacific Region, adapted from the work of W. E. D. Halliday, “A Forest Classification for Canada”, is appended to this chapter. In the North Pacific Region, characterized by vast distances and wide variations in topography, climate, and productivity, over wide areas little more than generalization is possible, particularly since more than half the region is virtually unexplored. It can, however, be said that its forest resources comprise, presently and potentially, one of the great timber reserves of the North American Continent. Tt should not be assumed that forest values are expressed entirely in yield and species. “The comparatively sparse growth in a remote interior valley may one day transcend in utility timber reserves in more accessible and productive coastal valleys. The forests of the valley of the Yukon, however thin and sparse, made possible the great mining Operations on the Klondike and other Yukon rivers. A 15-inch log on the shore of Great Slave Lake may, in place utility, be worth many times its footage in a locality of forest plenty. The far northern forests, meagre as their yield may be in certain areas, are vital to the future economy of north- Western Canada. They should be more closely appraised, their conservation planned, and their safety ensured so far as lies within the power of the State. Estimates of timber reserves over the more heavily timbered and accessible coastal and interior sections are specific. For the more remote areas, notably the extreme - north of British Columbia, the results of a forest inventory based on ground examination coupled with air photography have furnished more accurate estimates than had been available previously. A fair conception of the reserves “Over a large part of northern Alberta has been developed but for the Mackenzie Valley and Yukon any figures 3681 4 presented are the result of spot surveys, made in conjunction with air reconnaissance, covering only what are regarded as the most promising sections of the area. A recapitulation of the estimates (Table V) indicates that there are about 98,000,000,000 board feet of merchant- able timber in the North Pacific Region, of which about 31,000,000,000 feet are at present accessible and which, with labour and markets available, could be logged economically. Although there would be some advantage in discussing these northwestern forests by physiographic regions, a good deal of the factual material available has been reported by the divisions or districts that have been set up for purposes of administration. The main divisions are: Prince Rupert District of British Columbia, which comprises the coastal area of the North Pacific Region, including Queen Charlotte Islands, and the portion of the Central Plateau generally tributary to the rivers of the north coastal area, principal of which are the Skeena and the Nass. Fort George District of British Colwmbia, comprising the section of the Central Plateau and the west slope of the Rockies regarded as tributary to the upper Fraser and Peace Rivers. The Northern Forest District of British Columbia, comprising the areas tributary to the upper Liard and Stikine Rivers and southern tributaries of the Yukon. This district is sub-divided into regions designated as Regions A, B, C, and: D. Yukon Territory, represented by an area drained by the Yukon River and tributaries, and part of the upper Liard Valley. Northern Alberta, comprising the lower valley of the Peace and tributary streams. This includes the Peace River agricultural area and the northern Alberta foothills. Mackenzie District, comprising areas tributary to the Slave and Mackenzie Rivers, and the lower Liard River. Prince Rupert District About 45 per cent of the total merchantable timber and about 67 per cent of the accessible merchantable timber of the entire North Pacific Region can be found within the forest district designated by the Province of British Columbia as the Prince Rupert district. This district includes, within the North Pacific Region limits, the coastal section from Bella Coola to the Portland Canal inclusive, the upper valleys of the Skeena and Nass Rivers, the Bulkley Valley, the Francois Lake section and the upper Nechako Valley. The Queen Charlotte Islands also are included in this district. [49 }