Report on the Geology and Resources of the Black Hills of Dakota; With Atlas

Report on the Geology and Resources of the Black Hills of Dakota; With Atlas

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ...greater in the limestone canon, where for long distances the Box Elder flows in a swift current over bare bed-rock. Box Elder is not a single or main powerful stream like most of the other creeks in the Hills, but an aggregate of numerous small branches formed by insignificant brooks, which do not unite until the stream enters the limestone. Many of these head branches are mere threads of water, or contain water only in occasional deep holes, and are dry during a greater portion of the year, the largest fork being but 6 to 10 feet wide and very shallow. Small ponds and broad marshy flats overgrown with a swamp of willows and low bushes are often encountered on the forks of this stream. They are produced by the beaver in damming back the water in the level valleys, and from the same cause large and deep beds of black peaty muck have been formed by the gradual deposition of vegetable matter in these still pools. Elk Creek is a stream not quite as large as Box Elder, but resembling it in other respects. For three miles of its course it flows through a narrow and crooked canon in the slates, then emerges into an open and flat valley, with broad grass flats skirting its banks, through which it winds for about three miles, and, entering the great limestone formation, sinks in the bed of the canon and disappears. Where the dry ravine of this stream opens upon the red valley at the edge of the plains, several fine springs of excellent cold water burst out from under the Triassic limestone, and form a considerable stream, flowing, however, but a short distance before it sinks and disappears. On lower Box Elder and on the divides along the valley of Elk Creek there is considerable pine timber which has escaped the extensive forest fires. The trees are, ..
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Product details

  • Paperback | 212 pages
  • 189 x 246 x 11mm | 386g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236588762
  • 9781236588760