The outlet of Lake Bonneville

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1880
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Abstract
SOME of the readers of the Journal will remember that the name "Lake Bonneville" has been applied to a great body of water which formerly covered the desert basins of Utah.Its most conspicuous vestiges are its shore lines, and from them it is known that the ancient water surface was more tban ten times as great as that of Grea't Salt Lake, and the ancient water level was about one thousand feet above the modem.It was early surmised that the ancient lake was freshened by overflow, but the point of discharge was for a long time undis• covered, and it may be said to be still in controversy.The present paper takes up the subject of the outlet where it was left nearly two years ago.In this Journal for April, 1878, the writer maintained that the point of outflow was Red Rock Pass, Idaho, at the north end of Cache Valley; that the discharging stream descended through Marsh Valley and thence continuously to the Pacific Ocean ;_and that, flowing over soft material at first, it gradually excavated at the Pass a channel more than three hundred feet deep, and lowered the lake level by the same amount.In the June number of the Journal, Dr. A, C. Peale controverted my conclusion, declaring, first, that the original altitude of Red Rock Pass was consiuerably below the !Jighest level of Lake Bonneville; second, that the ancient shore liue exists in Marsh Valley at the north of the pass, just as in Cache Valley at the south; and finally, that the real point of discharge, when the water stood at th~ Bonneville level, was about forty•five miles north of Red Rock Pass.
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openalex_W2326897883 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors George Gilbert
Journal american journal of science
Year 1880
DOI
10.2475/ajs.s3-19.113.341
URL
https://doi.org/10.2475/ajs.s3-19.113.341
Keywords Keywords not found

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