The book A Geological Reconnaissance Across Idaho was written by author George Homans Eldridge Here you can read free online of A Geological Reconnaissance Across Idaho book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Geological Reconnaissance Across Idaho a good or bad book?
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The position of the beds is nearly horizontal, with a possible slight dip to west. Their relation to the other beds in the valley could not at the time be determined, but they are quite likely younger than the series of green clays, at one point, indeed, apparently resting upon them or a nearly allied stratum. Moreover, apparently the red clays everywhere occur at a higher altitude than the green. The conglomerates of this series of Tertiary beds outcrop in great force about the periphery of th...e Salmon City Valley, especially at the west base of the Continental Divide, and are difficult of reference. Being auriferous, they are the most important, from an economic stand- point, of all the beds. They are exposed in the cuts of the Lemhi F. UIIIIDGK 1 CENOZOIC IN SALMON-LEMHI VALLEY. 233 Placer Mining Company on Kirtley Creek, about 2 miles from the base of the range. At this point the section given below was obtained. The gravels of this section, Pleistocene and Tertiary, are made up of quart/ites and schists derived from the neighboring mountains.
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