follow the Trench route for a considerable distance on the general line established in the survey mentioned. On the subject of land transportation, it seems important that an all-weather highway should be established from Fort Nelson down the Liard River to reach the Mackenzie River in the vicinity of Fort Simpson with an ultimate extension to a terminus in the mineral-bearing fields north of Great Slave Lake. Such a highway, aside from its strategic value in linking the Alaska Highway with the Mackenzie River system of water transportation, would secure for the future development of the more sparsely timbered Mackenzie Valley the rich and extensive timber resources of the Liard Valley, and make available to the Mackenzie District the agricultural potential of this, the most equable of the far-northern valleys. Such an all weather connection would, moreover, have the effect of increasing the navigation period and hence the transporta- tion value of the Mackenzie River by making possible early and late sailings and arrivals at Fort Simpson. These movements, lacking an alternative trafie connection, must now depend on ice conditions in Great Slave Lake and in the Slave and Athabaska Rivers. The completion of the all-weather highway from Grim- shaw, on the Northern Alberta Railways, to Hay River will be a most welcome achievement. Apart from its value as a new link in the northwest transportation system, it may be expected to result in the extension of organized agricultural development through the Hay River Valley to the shores of Great Slave Lake. - Practical consideration of a railway to Great Slave Lake must await the progress of mining developments in that area. Rail extensions in the Peace River country will undoubtedly follow the further occupation of agri- cultural lands, and a projected rail connection from Aggie, on the Northern Alberta Railways, through the Smoky River country to the main Canadian National Railways line would open extensive agricultural and forest areas. The potentialities of Prince Rupert as an ocean port to the Orient and the imminence of important industrial and port developments there indicate a considerable early- expansion in population in that locality and suggest the advantage of highway extensions into some of the good agricultural valleys of its immediate hinterland, particularly the Nass, Cranberry, Kitwanga, and Kispiox Valleys, and possibly south from Lakelse Lake through the Kitimat Valley to tidehead. While the agricultural land in these valleys is limited, it has a high place utility in this country of high mountains, dense forests, and rugged shores. Besides its importance as an ocean port, Prince Rupert is the natural continental gateway to Alaska. A glance at the chart will show Alaska to be an economic island, with its natural channels of land communication passing through Canada. It is nevertheless dependent almost entirely on water transportation from the northwestern ports of the United States. While distance and topography have contributed to Alaska’s isolation, the trade policies of the {12} United States and Canada have been an even more potent factor. It is hoped that early physical and legislative means will be found to bring northwestern Canada and Alaska into closer economic community. Minerals The future of the North Pacific as of all northern Canada appears to be largely dependent upon the develop- ment of its mineral wealth. Experience in other regions has shown that, where conditions are favourable, mining developments are followed by the establishment of other primary industries, which, in turn, lead to the development of various secondary operations. The progress so far achieved in developing the mineral resources of the Coastal section, Yukon, Great Bear Lake, Norman Wells, Yellowknife, and Fort McMurray, has been widely publicized. It would be an overstatement to say that the surface has only been scratched; with the exception of a few areas, the surface is largely unknown and has not been prospected. What is known, however, is that the region contains large areas in which the geological conditions are as favourable as those in other areas on the continent that have produced large quantities of mineral wealth. Among the potential mineral areas in the North- west are the borders of the CassiarOmineca batholith, which is crossed by the Alaska Highway; the borders of the Coast Range batholith in Yukon, which is skirted on the southwest by the highway almo-t to the Alaska boundary; the eastern or interior margin of the Coast Range batholith in British Columbia; the placer fiel-s of Yukon which, since the end of the recent war, have been the scenes of much activity; the Mackenzie watershed, where the structure indicates the presence of extensive oilfields; and the large Precambrian area between Great. Slave Lake and Great Bear Lake, where discoveries of great significance have given a stimulus to exploration and where a great variety of metallic mineral occurrences has already been found. In this Precambrian area on the east shore of Great Bear Lake occur also the most important supplies of radioactive minerals on the continent, and it is not unreasonable to expect that other occurrences may be developed as the country becomes more thoroughly pros- pected. Certainly those investigating the uses of atomic energy look, to this region as one of the most important sources of pitchblende ore. In the past, the relative inaccessibility of most of these areas and the shortness of the exploration season have seriously: handicapped the work of the geologist and the prospector. The growing use of aircraft and the con- struction of the Alaska Highway and other roads have already made possible the expansion of prospecting activities and an increase in the number and range of geological surveys. Mining development in the Northwest would be greatly facilitated by a program of detailed mapping, developed