The Mineral Wealth, Climate And Rain-Fall, And Natural Resources of the Black Hills of Dakota
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In our eReader you can find the full English version of the book. Read The Mineral Wealth, Climate And Rain-Fall, And Natural Resources of the Black Hills of Dakota Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Mineral Wealth, Climate And Rain-Fall, And Natural Resources of the Black Hills of Dakota
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To quickly assess the difficulty of the text, read a short excerpt:
Rapid Creek, above the springs, is a fine stream of water from 20 to 25 feet wide, and 10 to 15 inches deep, with a very swift current.
Probably the volume of the water is not less than 2,000 miner's inches in July, and below the springs 2,500 inches is not too great an estimate for the available water. For at least iive miles along the valley below the mouth of the ^aiion, the stream is bordered by the largest gravel bars and flats discovered in the Hills, reaching out to the low ridges of Jur...assic foot-hills, among the level plains, and capping broad benches of limestone and Eed Beds at the sides of the valley. The amount of gravel brought down by Rapid Creek and piled up in these deep and extensive deposits is very large; not only low hills below the caiiou are covered by high bars at several different elevations, but the broad flats along the stream are made ' up of a deep deposit of gravel, composed mostly of limestone and sandstone, intermixed with some slate and quartz. Several attempts were made by my assistants to sink prospect holes on these flats along the banks of the creek, but the pits had to be abandoned at depths of from 9 to 12 feet before reaching bed-rock, on account of striking springs of water.
What to read after The Mineral Wealth, Climate And Rain-Fall, And Natural Resources of the Black Hills of Dakota?
You can find similar books in the "Read Also" column, or choose other free books by Jenney, Walter P. (Walter Proctor), 1849-1921 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Rapid Creek, above the springs, is a fine stream of water from 20 to 25 feet wide, and 10 to 15 inches deep, with a very swift current.
Probably the volume of the water is not less than 2,000 miner's inches in July, and below the springs 2,500 inches is not too great an estimate for the available water. For at least iive miles along the valley below the mouth of the ^aiion, the stream is bordered by the largest gravel bars and flats discovered in the Hills, reaching out to the low ridges of Jur...assic foot-hills, among the level plains, and capping broad benches of limestone and Eed Beds at the sides of the valley. The amount of gravel brought down by Rapid Creek and piled up in these deep and extensive deposits is very large; not only low hills below the caiiou are covered by high bars at several different elevations, but the broad flats along the stream are made ' up of a deep deposit of gravel, composed mostly of limestone and sandstone, intermixed with some slate and quartz. Several attempts were made by my assistants to sink prospect holes on these flats along the banks of the creek, but the pits had to be abandoned at depths of from 9 to 12 feet before reaching bed-rock, on account of striking springs of water.
What to read after The Mineral Wealth, Climate And Rain-Fall, And Natural Resources of the Black Hills of Dakota?
You can find similar books in the "Read Also" column, or choose other free books by Jenney, Walter P. (Walter Proctor), 1849-1921 to read onlineMoreLess
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