Excerpt from A Geological Reconnaissance Between Golden and Kamloops, B. C., Along the Canadian Pacific Railway The Canadian Cordillera is divisible into four major prov inces: (a) the Coastal Mountain system, including the Vancouver range and the Coast range; (b) the Belt of Interior Plateaus; (c) the Middle or Interior Mountain group, including the Colum bia, Selkirk, and Purcell ranges; and (d) the Rocky Mountain system (map No. The basis of this subdivision and naming is described in Chapter III of Memoir No. 38 of this Survey. Dawson's pioneer statement 'w as there enlarged and otherwise changed in order to meet the necessities of systematic work along the 49th parallel section. The constituent mountain systems are separated from one another, with some rigour, by structural depressions and erosion troughs. In the area covered by this reconnaissance the systems concerned are the Rocky, Purcell, Selkirk, and Columbia mountains, and the Belt of Interior Plateaus. The dividing depressions are: the Rocky Mountain trench, the Purcell trench, and the Selkirk Valley (namely, that part of the Columbia valley that lies west of the Selkirk range). About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.