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601 - 625 of 881 Items << < 20 21 22 23 24 25 26 27 28 29 > >>
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Document: "Pacific Southwest Water Plan- Corrected to 8/19" Chapter I, August 19, 1964, page 1
1963-08-19
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Document: Appendix to Pacific Southwest Water Plan of August 1963 as modified January 1964 "Geological Survey", January 1964, page 13
1964-01-01
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Journal: Anthropological Notes, University of Utah Department of Anthropology, "Outline History of the Glen Canyon Region 1776 - 1922", Number 42, September 1959, page 107
1959-09-01
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Report: "Reconnaissance Engineering and Geological Report on the Bridge Canyon Tunnel"- Enclosed correspondence between Kartus and Tognoni, January 17, 1956, no pagination
1956-01-17
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is in its geological structure and history. In this respect also, the situation is favorable in that there has been little thrusting, crowding, folding or other deformation of large consequence in recent time affecting this plateau block.
For an...
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CHAPTER I
THE PACIFIC SOUTHWEST
Southern California and the Lower Colorado River Basin depend either partially or totally upon the flows of the Colorado River and its tributaries for their water supplies. This report, therefore, treats these...
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CONTENTS
Page
Introduction 1
The Water Supply Situation in Brief 2
Hydrologic Investigations 2
Past and Current Programs 2
A Long-range Program 7
Work for early completion 7
Regional water-resource appraisal 7
Statistical analysis of streamflow...
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MEMORANDUM REPORT
ON
LOWER COLORADO RIVER PROJECT
Introduction
Water resource development projects hydrologically link the Colorado River with many other river systems in the West. Topographic separation of the Colorado River has been overcome by...
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Letter to John W. Rold, Colorado Geological Survey Director, from Louis F. Campbell, Jr., Colorado State Cartographer, concerning enclosed photographs and six orthophotographs. Images have an approximate scale of 1:76,000, and areas shown...
1975-07-12
2007-01-02 2007-01-02 |
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A 1892 Act of Congress
1892-02-20
2005-02-09 2004-12-17 |
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A portable model of the Grand Coulee Dam, built to a scale of 1 inch equals 80 feet.
2025-06-20
2025-02-20 |
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Topographic sketch map, looking southerly from the dam, of the area embracing the lands to be irrigated.
2025-02-20
2025-02-20 |
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1 map: col., 20 x 33 cm.
"U.S. Geological Survey Bulletin 614 Sheet 1."
Scale approximately 8 miles to 1 inch.
A larger scale map of this route can be seen at http://kaga.wsulibs.wsu.edu/zoom/zoom.php?map=wsu381
The next section...
2025-02-20
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1 map : col., 23 x 23 cm. Map shows boundary between Washington and Idaho.
A larger scale map of this route can be seen at http://kaga.wsulibs.wsu.edu/zoom/zoom.php?map=wsu231
The next section of the map moving west is at...
2025-02-20
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1 map. Relief shown by contours. At head of title: Section XI. "Sheet no. 10." "Register no. 2231. For more sheets from this set of topographic maps of the San Juan Islands as well as more information refer to the index page here. Scale 1:10,000.
1895-02-20
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1 map. Relief shown by contours. At head of title: Section XI. "Sheet no. 1." "Register no. 1952." For more sheets from this set of topographic maps of the San Juan Islands as well as more information refer to the index page here. Scale 1:10,000.
1889-02-20
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1 map : col. ; 38 x 38 cm. Edition : Rev. to Oct. 1907. Relief shown by contours, hachures and spot heights. Originally published Nov. 1906. Scale 1:126,720. 2 miles to 1 in. (W 122°00--W 121°23/N 47°06--N 46°41)
2025-02-20
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The influence of geomorphic change on ecohydraulics has traditionally been difficult to quantify. With recent improvements in surveying technology, high-resolution, repeat and topographic surveys have become a common tool for estimating fluvial...
2010-01-01
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North American beaver (Castor canadensis) alter stream channel morphology, hydrologic processes, and instream temperature regimes, yet there are few data driven studies that investigate the effect of beaver on stream channel complexity and stream...
2016-05-01
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A distributed mass balance approach is being developed to model spatially variable hydrologic processes in an arid mountain watershed. The model will be applied to Upper Sheep Creek, a 26 ha catchment within the Reynolds Creek ARS Experimental...
1994-01-01
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The study of mass and energy transfer across landscapes has recently evolved to comprehensive considerations acknowledging the role of biota and humans as geomorphic agents, as well as the importance of small-scale landscape features. A...
2015-09-01
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Spatial variability in snow accumulation and melt owing to topographic effects on solar radiation, snow drifting, air temperature and precipitation is important in determining the timing of snowmelt releases. Precipitation and temperature effects...
1998-08-01
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High-resolution topography data (lidar) are being collected over increasingly larger geographic areas. These data contain an immense amount of information regarding the topography of bare-earth and vegetated surfaces. Repeat lidar data (collected...
2013-01-01
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