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Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75-minutes of latitude by 3.75-minutes of longitude) image cast on the Universal Transverse Mercator Projection (UTM) on the North American Datum of 1983 (NAD83).The geographic extent of the DOQ is equivalent to a quarter-quad plus The overedge ranges a minimum of 50 meters to a maximum of 300 meters beyond the extremes of the primary and secondary corner points. The overedge is included to facilitate tonal matching for mosaicking and for the placement of the NAD83 and secondary datum corner ticks. The normal orientation...
Aerial view of typical terrain of 180-foot loessial silt-mantled gravel terrace, with its thaw lakes, incised creeks. Located between Beaver Creek and Rogers Creek south of Yukon River. Yukon Flats district, Yukon region, Alaska. August 7, 1949.
Aerial view of part of Castle Creek Lake, northwest of Mount St. Helens. Cowlitz County, Washington. June 25, 1980.
Aerial view of Mount St. Helens' southwest flank. "Two-Fingers" lava flow left of center. "Mitten" lava flow right of center. Skamania County, Washington. September 28, 1979.
Aerial view of upper cone, looking west-southwest. Although seismic activity began under Mount St. Helens on March 20, this overflight showed no unusual features except numerous tracks of earthquake-triggered snow avalanches. No evidence of fracturing of summit area was detected during careful visual observations on the afternoon of March 24, 1980. On March 25, the first cracks were noted by Bud Kimball, Tacoma, Washington. Photo by David Frank. Skamania County, Washington. March 24, 1980. Figure 17, U.S. Geological Survey Professional paper 1250.
Categories: Image;
Tags: Aerial,
Avalanches,
Frank D. Collection Mount St. Helens msh198003e,
Mount St. Helens,
Mount St. Helens 1980 March,
Aerial view of Simpson Desert. Pans holding both salt (right) and water (left) but few dunes; near Oodnadatta. Australia. 1976.
Aerial view taken from about 1500 feet from point over marginal escarpment due north of Stevens Village southward across the Yukon Flats toward Yukon River. Yukon Flats district, Yukon region, Alaska. August 7, 1949.
Mount Pinatubo, Philippines. Aerial view of Abacan river channel as it passes through Angeles city near Clark Air Base. Mudflow associated with June 15 eruption casued collapse of main bridges across the Abacan river. Note makeshift bridges for pedestrians. USGS photo by T. J. Casadevall. August 12, 1991.
Oblique aerial view from the south of Mount St. Helens, with Mt. Rainier partially visible in the background. Logged area visible in foreground. Skamania County, Washington. 1978.
Categories: Image;
Tags: Aerial,
Mount St. Helens,
Mount St. Helens 1978,
Mount St. Helens msh1978,
photo print
Aerial view with snow (winter 1965); USGS photo P879A, F1064 USGS Open-File Report 2005-1190, Figure 020b.
Aerial view of dome and snow-covered crater, looking south. Skamania County, Washington. April 13, 1981.
Categories: Image;
Tags: Aerial,
Leighley T. Collection Mount St. Helens msh1981,
color transparency (slides)
(Roll 1, Frame 9). Aerial view of 1915 scarp on high peak 2 miles south of Fencemaker Pass, Stillwater Range. Scarp probably 1954. Humboldt Range, Nevada. Sept 19, 1974.
Aerial view of lava dome that developed in the crater of Mount St. Helens since the October 1980 eruption. The dome here is approximately 300 feet high and 800 feet across. Photo by Terry Leighley. Skamania County, Washington. January 7, 1981. Published on p. 98, upper photo, in U.S. Geological Survey. Earthquake information bulletin, v. 13,no.3. May-June 1981.
Aerial view of dome and crater floor from south, with scattered fumaroles. Skamania County, Washington. January 7, 1981.
Categories: Image;
Tags: Aerial,
Leighley T. Collection Mount St. Helens msh1981,
color transparency (slides)
Aerial view of Occidental's Logan Wash mine site. Upper and lower benches in left center. Gas processing facilities on ridge above. Garfield County, Colorado. August 27, 1981.
Aerial view of Mount St. Helens and amphitheater; degassing. Skamania County, Washington. May 31, 1980.
Aerial view of dredges in Columbia River at Longview, southwest of Mount St. Helens. Cowlitz County, Washington. July 10, 1980.
Aerial view of logging cars submerged in mud at Camp Baker, northwest of Mount St. Helens. Cowlitz County, Washington. July 2, 1980.
More distant aerial view, looking south, of crater and dome partially obscured by plumes from fumaroles. Photo by M. Doukas. Skamania County, Washington. July 13, 1980.
Categories: Image;
Tags: Aerial,
Doukas M.P. Collection Mount St. Helens msh198007,
Photographers,
color transparency (slides)
Aerial view northeast across northwest flank of Mount St. Helens and canyon of South Fork Toutle River. Skamania County, Washington. September 28, 1979.
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U.S. Department of the Interior
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U.S. Geological Survey
