America. D. M.Douson

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While, thus, there was a revealing of the general structure of a relief of Canada, the geologo-prospecting management based in 1840 has started to be engaged in its detailed elaboration. One of the most presented employees of this department, somebody D. M.Douson, worked earlier as the geologist in the North American commission on demarcation of border and was engaged in geological investigation lengthways 49 ° with. sh. From Wood lake to Pacific ocean. In 1875 it has passed to studying of British Columbia and North-West territories till 1878 it worked in the first of these provinces, investigating the central area around verhovev the rivers the Milling cutter. In 1877 and 1878 it worked on island Vancouver, considerable which internal areas were investigated already in 1863-1865 by R.Brown. In 1878 g Dawson has gone to Manitoba for studying of the rivers Red Rivers and Assinibojn. Having returned to area of the river Pis and northern British Columbia, it has made researches of a line of a way from Port-simpsona on the western coast (on the rivers Skina and Pis) to ' Edmonta. In 1880-1882 it had been made shooting of the rivers Bou. And Bell, in 1882-1884 of-separate parts of the western Rocky mountains and a ridge of Selkirk. In 1887 1888 Dawson has made one of the most known expeditions, this time in territory. Yukon, and to it and its assistants the Poppy-konnelu and the Poppy-evoju belongs honour of original opening and the description of this area.