Results
5676 - 5700 of 5942 Items << < 223 224 225 226 227 228 229 230 231 232 > >>
5676 - 5700 of 5942 Items << < 223 224 225 226 227 228 229 230 231 232 > >>
|
2024-11-24
2024-11-24 |
|
2024-11-24
2024-11-24 |
|
Let us travel the 65-mile length of the Columbia River Gorge for a closer look at the rock formations and geology of the area. We will supplement our observations with information from the literature on the geology of the Gorge and try to put...
1974-12 (iso8601)
|
|
Between the Dalles of the Columbia and the mouth of Snake river there are six rapids, from which rocks should be removed to secure a depth of seven feet at the lowest stage of water.
Four of these rapids have been surveyed during the fiscal...
|
|
Capt. C. F. Powell, 1882-85. R., 82, 2684; 83, 2073; 84, 2272.
Maj. W. A. Jones, 1885-90. R., 85, 2439; 86, 1952; 87, 2524; 88, 2190; 89, 2589.
Maj. T. H. Handbury, 1890-93. R., 90, 3063; 91, 3370; 92, 2837; 93, 3526.
Maj. J. C. Post,...
|
|
394 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY.
improvement at Eoss Island contemplates closing the middle and east
chutes at that locality by dams to a height of 4 feet above low water,
and to assist the erosion thus caused in the...
2006-06-16
|
|
Nearly completed residences for employees of the Fish and Wildlife Service at the Winthrop station.
1941-11-18
2024-11-24 |
|
Across landscapes, riparian plant communities assemble under varying levels of disturbance, environmental stress, and resource availability, leading to the development of distinct riparian life-history guilds over evolutionary timescales....
2015-10-01
|
|
sary shops, storage platforms, and other structures. These were to be built upon a sandy plateau of comparatively recent formation, the surface of which was from 1 to 4 feet above the level of ordinary high tide. This surface was covered with...
|
|
4' x 4' box culvert for carrying the waters of Pingston Creek beneath the relocated Kettle Falls to Williams section of the Great Northern Railroad.
1940-11-11
2024-11-24 |
|
Coal fleet arriving at Portland daring twelve months ending June 30, 1884.
[Compiled from statements furnished by James Laidlaw & Co. and J. M. Fox, coal agent, Oregon
Improvement Company.]
Number of cargoes.
Months.
Amounts.
Domestic....
|
|
at a crossing. The fault, in a way, was Blackmore's, because of his failure to tell me in advance what was expected, and then—when the order had to be passed instantly—for standing rather too much on ceremony in the manner of passing it. We...
2004-08-09
|
|
was afforded by the clean-swept rock. Only one crossing of the main stream was necessary. It was a good natural ford at low water, but quite out of the question to attempt at high. We found it about medium—a little more than belly deep and...
2004-08-04
|
|
Photographs of Seattle, the Klondike Gold Rush, Skagway and a steamer trip to the Far East, circa 1897-1923; Rollin Sanford (October 18, 1875-December 7, 1944) was born in New
York City. His parents were Elihu Harrison Sanford and Mary W....
|
|
Diaries, notebooks, and papers of an
Oregon ship builder and construction contractor. Includes notes and
specification on steamers active on the Willamette and Columbia Rivers in the
late 19th and early 20th centuries.; Biography of...
|
|
A plate steel conduit liner, 102-inch inside diameter, is lowered to a block in the spillway section of the dam. Below are the partially installed castings for a ring seal gate installation at elevation 1136.
1939-12-01
2024-11-24 |
|
Work is suspended at the pumping plant foundation for the duration of the winter weather.
2024-11-24
2024-11-24 |
|
The Fuller-Kinyon remote-control unloader used for removing bulk cement from boxcars at the cement blending storage plant.
1938-12-30
2024-11-24 |
|
The contractor's aggregate processing plant where sand and gravel is washed and screened into the proper sizes. The large stockpile is the surplus sand mined at the Brett pit and wasted at this point.
1939-06-01
2024-11-24 |
|
An aerial view of the pumping plant foundation excavation early in 1939. The bench in front of the discharge tunnels has been partially excavated to the final grade, elevation 1163.
1939-04-01
2024-11-24 |
|
in one year, between 1879 and 1880, indicate a possible close approach to a breach at this point through the Middle Sands.
The more southerly depression had in 1878 a width between the 3-fathom curves of 4,600 feet, with a depth of 13 feet; in...
|
|
The Patricia K. Ourada Papers date from 1962 through 1995 and consist of course materials, research files, manuscripts, correspondence, articles and ephemera. Materials highlight Dr. Ourada’s work as an advocate of Native American issues on the...
|
