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1576 - 1600 of 5942 Items << < 59 60 61 62 63 64 65 66 67 68 > >>
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The mechanisms of mortality during critical life stages of fish are not well-understood and, for many species, it is not clear if the mechanisms are similar for naturally and artificially propagated individuals. For Chinook salmon (Oncorhynchus...
2013-03-12 (iso8601)
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11. An Evaluation of the Effectiveness of Intermittent Discharge of Sulfite Waste Liquor in Controlling the Growth of Sphaerotilus, Lower Columbia River, Spring 1962, a cooperative study conducted by the Oregon State Sanitary Authority, Portland,...
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Findings from nearly two decades of research focused on the Columbia River littoral cell (CRLC), a set of rapidly prograding coastal barriers and strand-plains in the U.S. Pacific Northwest, are synthesized to investigate the morphodynamics...
2016-06-01 (iso8601)
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Selected material from volume three of: "A History of the Columbia Basin Project: Volume III"
2024-11-25 |
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cur in the river below if the reservoir is drawn down to a low level during kite summer. Many more data must be obtained on the tolerance of anadromous fish to higher temperatures. The proposed operating schedule of all future reservoirs,...
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construction of works to control floods not only prevents losses which would otherwise be sustained, but in many instances converts a liability into an asset.
Floods in the Columbia River system do not present the frequently recurring menace...
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Columbia River reservoir. The old town site of Marcus in the foreground, with the abandoned Great Northern Railroad bridge at the right. Water surface of the reservoir is at elevation 1252.5.
1941-07-29
2024-11-25 |
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The Warner Creek Fire collection consists of documents related to the Warner Creek Fire in Willamette National Forest, Oregon in October 1991, and its aftermath. The majority of the collection is the Administrative Record presented by the U.S.F.S....
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A black-and-white photographic postcard. The printed caption at upper right reads "The Needles, Cape Horn on the Columbia River". The view is of a rock formation known as The Needles, with a waterfall flowing from the top of a cliff and into the...
2004-08-05
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Image Caption: BEGINNING OF BASALT BLUFFS BELOW WENATCHEE --page break-- Three and a half miles farther along I reached the crossing of the main line of the Great Northern Railway. At a very contracted place in the River, natural rock abutments...
2004-07-20
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Bring Those Tires
to Henry's
Columbia Tire Shop
Michelin Tires
WE Sell Them
821/2 Broadway North
Portland, Oregon
Vulcanizing
FALLS VILLA
ON
Columbia River Highway...
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and is held in readiness for future use. Although the foundation to a great extent proved to be quicksand, and the velocity of the current unusually strong, still, upon an examination of the piles, caps, and braces, it was found that the...
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2 p. Article detailing the discovery and early exploration of the Columbia River. There is also some focus on the placement and expected future greatness of Astoria.
1892-05-14
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Photo shows Kettle Falls, on the Columbia River, which are now obliterated by the backwater from Grand Coulee Dam
1935-09-18
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Rock Island Dam on the Columbia River
The middle fish ladder has not yet been constructed
1935-06-23
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Master scanned with Epson 1640XL at 800 dpi. Image manipulated with Adobe Photoshop 7.0.
1942-06-26
2003-01-01 |
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Hydrographic and bathythermograph data taken off the Oregon
coast during a two week period in August of 1969 were analyzed to
determine if heat content and mixed layer depth may be used as
indicators of Columbia River plume water.
Heat content was...
1971-11-03 (iso8601)
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The above statements include those vessels twice discharging or receiving part cargo at Astoria and Portland, which class is principally made up of San Francisco steamships, numbering for the year a little over 100 each way. On the other hand, the...
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Presention on the history and origin of the Columbia Basin Project presented at the annual meeting of the Washington Irrigation Institute in Pasco, WA 05-06 December 1940
2024-11-25 |
