Images

Lassen Peak photographed from the Devastated Area prior to the 1914-1915 eruption that changed the landscape.

Boulder Glacier - Terminus - 1913

Forsythe Peak and Dorothy Lake, Yosemite National Park, 1913. Photograph by Richard B. Dole, U.S. Geological Survey

Hauling drinking water from Upper St. Mary’s Lake, Glacier National Park, 1913. Photograph by Richard B. Dole, U.S. Geological Survey

USGS 1:62,500-scale topographic map of Meadown Creek, West Virginia, publishsed 1912

Volcanic ash drifts around houses at Katmai after the June 1912 eruption of Novarupta Volcano. Church in the distant background. August 13, 1912.

Chaney Glacier - notch - 1911

Chaney Glacier - Terminus - 1911

Grinnell Glacier from trail 1911.

Grinnell Glacier, GNP - 1911

A USGS rod man poses with his leveling rod in Salinas Valley, California.

Boulder Glacier - Chapman Peak - 1910

Grinnell Glacier from trail 1910.

Swiftcurrent Glacier 1910 (port)

One of the most well-known photographs by George R. Lawrence, taken May 28, 1906, about 6 weeks after the Great San Francisco earthquake which occurred on April 18. The 160-degree panorama was taken from a camera suspended from a kite 2,000 feet in the air. The view looks up Market Street with the waterfront and Union Ferry Building in the foreground.

Researchers map the bottom of Castle Lake, near Mount St. Helens. For three days, researchers ran a small boat over the lake surface equipped with an acoustic Doppler current profiler (ADCP). The ADCP bounces an acoustic wave off the bottom that is reflected back to a mobile receiver in the boat.

Mount Adams elevation is 3,745 m (12, 286 ft). Mount St. Helens was the smallest of five major volcanic peaks in Washington State.

Boulder Creek leading from Mount Baker, Washington is a hydrology monitoring site where water is collected and measured for chemicals that may signal volcanic unrest.

Top panel shows a continuous GPS station located in Yellowstone National Park. The antenna is secured to the ground by several metal poles, and a nearby set of solar panels provides power to the station. Lower panel shows a semipermanent GPS station, with a small solar array for power and an antenna located close to the ground.

Some of the large ballistic blocks from the Kīlauea eruption of 1924 later became visitor attractions. Many of these blocks remain in place today as evidence of the forces unleashed at Kīlauea during the eruption of 1924.

Coconut grove and campground on the southern shoreline of Kīlauea Volcano at Halapē before 1975 magnitude 7.7 earthquake. Halapē was a popular hiking destination in Hawai‘i Volcanoes National Park.