This is a false-colored-composite satellite image of the Great Salt Lake, taken in Sept, 1987. Vegetation appears red.
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False-colored-composite satellite image, Great Salt Lake, Sept 1987
This is a false-colored-composite satellite image of the Great Salt Lake, taken in Sept, 1987. Vegetation appears red.
Mount Thielsen (2,799 m or 9,182 ft) is an extinct volcano north of...
Mount Thielsen (2,799 m or 9,182 ft) is an extinct volcano north of Crater Lake, Oregon that last erupted 250,000 years ago. Aerial view.
Mount Thielsen (2,799 m or 9,182 ft) is an extinct volcano north of Crater Lake, Oregon that last erupted 250,000 years ago. Aerial view.
Dome building eruption at Mount St. Helens—30-minute, moon-lit expo...
The last dome-building eruption of Mount St. Helens during the 1980s occurred in October 1986. A new lobe was extruded, increasing the dome's height to 925 feet (282 meters), making it taller than a 77-story building. In volume, the dome was nearly 40 times the size of Seattle's Kingdome stadium.
The last dome-building eruption of Mount St. Helens during the 1980s occurred in October 1986. A new lobe was extruded, increasing the dome's height to 925 feet (282 meters), making it taller than a 77-story building. In volume, the dome was nearly 40 times the size of Seattle's Kingdome stadium.
View of the Spirit Lake outlet tunnel, built in 1985, that allows w...
View of the Spirit Lake outlet tunnel, built in 1985, that allows water to drain out of Spirit Lake safely and maintain the lake's water level 100 ft (30 m) below the estimated overtopping level.
View of the Spirit Lake outlet tunnel, built in 1985, that allows water to drain out of Spirit Lake safely and maintain the lake's water level 100 ft (30 m) below the estimated overtopping level.
Volga River Delta at the Caspian Sea
The Volga River is the longest river in Europe and empties into the northwestern part of the Caspian Sea. The green in this image is algal bloom mixed with mud, the result of the chemical pollutants deposited in the Delta.
The Volga River is the longest river in Europe and empties into the northwestern part of the Caspian Sea. The green in this image is algal bloom mixed with mud, the result of the chemical pollutants deposited in the Delta.
San Andreas Fault in SE Coachella Valley
Oblique aerial view of San Andreas Fault (between white arrows) in southeastern Coachella Valley, near Red Canyon; view to the west.
Oblique aerial view of San Andreas Fault (between white arrows) in southeastern Coachella Valley, near Red Canyon; view to the west.
Catastrophic Landslide
The Mameyes, Puerto Rico, landslide, 1985. This landslide destroyed 120 houses and killed at least 129 people. The catastrophic slide was triggered by a tropical storm that produced extremely heavy rainfall.
The Mameyes, Puerto Rico, landslide, 1985. This landslide destroyed 120 houses and killed at least 129 people. The catastrophic slide was triggered by a tropical storm that produced extremely heavy rainfall.
Cape Flattery topographic map, 1985
Topographic map of the Cape Flattery region (U.S. Geological Survey Cape Flattery Quadrangle, 15-min series).
Topographic map of the Cape Flattery region (U.S. Geological Survey Cape Flattery Quadrangle, 15-min series).
Three Sisters volcanoes (left to right - South, Middle, and North)
Three Sisters volcanoes (left to right - South, Middle, and North) viewed from the south, Oregon. Foreground rhyolite Newberry flow is one of most recent eruptive units (2.2 ka).
Three Sisters volcanoes (left to right - South, Middle, and North) viewed from the south, Oregon. Foreground rhyolite Newberry flow is one of most recent eruptive units (2.2 ka).
Lava dome in Mount St. Helens' crater as viewed from the "Deepthroa...
The lava dome was taller than a 66-story building and almost as wide as the length of nine football fields. The dome completely fills the camera's field of view. Compare with image taken August 22, 1981 from the same location with the same camera.
The lava dome was taller than a 66-story building and almost as wide as the length of nine football fields. The dome completely fills the camera's field of view. Compare with image taken August 22, 1981 from the same location with the same camera.
USGS station 08110500 Navasota Riv. near Easterly, Tex.
U.S. Geological Survey streamflow-gaging station 08110500 Navasota River near Easterly, Texas, looking upstream from left bank, July 22, 1985.
SIR 2009–5174
U.S. Geological Survey streamflow-gaging station 08110500 Navasota River near Easterly, Texas, looking upstream from left bank, July 22, 1985.
SIR 2009–5174
Underground cavities beneath Ledges Sink, Fl
Water flow in the underlying cavity associated with Ledges Sink.
Water flow in the underlying cavity associated with Ledges Sink.
Underground cavities beneath Ledges Sink, Fl
Logs that fall through the overlying bedrock litter the cavern floor.
Logs that fall through the overlying bedrock litter the cavern floor.
Underground cavities beneath Ledges Sink, Fl
Roots break through the overlying bedrock of the cavern.
Roots break through the overlying bedrock of the cavern.
Underground cavities beneath Ledges Sink, Fl
Wil Causseaux climbs through the opening of Ledges Sink to the underlying caverns.
Wil Causseaux climbs through the opening of Ledges Sink to the underlying caverns.
Control Structure
The control structure between Lake Alice and Lake Irvine in 1985.
The control structure between Lake Alice and Lake Irvine in 1985.
Aerial View of Mauna Loa Volcano, Hawaii
USGS Hawaiian Volcano Observatory scientists monitor Mauna Loa, the largest active volcano on Earth. In this 1985 aerial photo, Mauna Loa looms above Kīlauea Volcano’s summit caldera (left center) and nearly obscures Hualālai in the far distance (upper right).
USGS Hawaiian Volcano Observatory scientists monitor Mauna Loa, the largest active volcano on Earth. In this 1985 aerial photo, Mauna Loa looms above Kīlauea Volcano’s summit caldera (left center) and nearly obscures Hualālai in the far distance (upper right).
Maps of Mauna Loa 1984 lava flows
Maps showing lava flow progression during the 1984 eruption of Mauna Loa. These maps were featured in the Hawai‘i Tribune-Herald newspaper on March 27, 1984 (top) and March 30, 1984 (bottom).
Maps showing lava flow progression during the 1984 eruption of Mauna Loa. These maps were featured in the Hawai‘i Tribune-Herald newspaper on March 27, 1984 (top) and March 30, 1984 (bottom).
Tule white-fronted goose in the Kahiltna Valley, Alaska, in 1984
Tule white-fronted goose in the Kahiltna Valley, Alaska, in 1984.
Tule white-fronted goose in the Kahiltna Valley, Alaska, in 1984.
Mount St. Helens four years after the May 18, 1980 eruption—lava do...
Mount St. Helens four years after the May 18, 1980 eruption—lava dome in the crater and drainage channels development on flanks; view from Johnston Ridge.
Mount St. Helens four years after the May 18, 1980 eruption—lava dome in the crater and drainage channels development on flanks; view from Johnston Ridge.
Fireweed, growing in Mount St. Helens' devastated area, Summer 1985
Vegetation began reappearing as early as the summer of 1980 as many small trees and plants were protected by the snowpack on May 18. Seeds, carried by the wind or by animals, also entered the area and grew. By 1985, the ridges surrounding the volcano were covered with new growth.
Vegetation began reappearing as early as the summer of 1980 as many small trees and plants were protected by the snowpack on May 18. Seeds, carried by the wind or by animals, also entered the area and grew. By 1985, the ridges surrounding the volcano were covered with new growth.