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California Volcano Observatory images.

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A black-and-white stereograph photo pair shows a horse-drawn cart advancing toward the photographer on a muddy dirt road. In the middle ground, an early-20th century hotel is flanked by other small shops and a single telegraph pole. In the background, a double-peaked snow clad mountain rises high above the town, faded with distance.
Stereograph photo of Mount Shasta and the town of Sisson in 1906
Stereograph photo of Mount Shasta and the town of Sisson in 1906
Stereograph photo of Mount Shasta and the town of Sisson in 1906

Horse-drawn carriage on road in Sisson, California, El Monte Hotel in foreground, Mount Shasta in the background. Image courtesy of the Library of Congress.

Photograph of the town of Sisson (later (1922) the town of Mt. Shasta) in the distance at the foot of Mount Shasta in winter. Snow covered fir trees in the foreground.
Town of Sisson at the foot of Mount Shasta in winter, ca.1900
Town of Sisson at the foot of Mount Shasta in winter, ca.1900
Town of Sisson at the foot of Mount Shasta in winter, ca.1900

Photograph of the town of Sisson (later (1922) the town of Mt. Shasta) in the distance at the foot of Mount Shasta in winter. Snow covered fir trees in the foreground. Photo courtesy of University of Southern California Libraries and California Historical Society. Digitally reproduced by the USC Digital Library.

Photograph of the town of Sisson (later (1922) the town of Mt. Shasta) in the distance at the foot of Mount Shasta in winter. Snow covered fir trees in the foreground. Photo courtesy of University of Southern California Libraries and California Historical Society. Digitally reproduced by the USC Digital Library.

Infographic about the 2019 report "California's Exposure to Volcanic Hazards"
California's Exposure to Volcanic Hazards
California's Exposure to Volcanic Hazards
California's Exposure to Volcanic Hazards

Infographic about the 2019 report "California's Exposure to Volcanic Hazards"

USGS Director Jim Reilly being given a tour of the CalVO Ops room by Emily Montgomery-Brown
USGS Director Jim Reilly being given a tour of the CalVO
USGS Director Jim Reilly being given a tour of the CalVO
USGS Director Jim Reilly being given a tour of the CalVO

In a February 5, 2019 visit, USGS Director Jim Reilly was given a tour of CalVO facilities, including the Operations Room. Here Emily Montgomery-Brown explains the networks that monitor California's threatening volcanoes.

In a February 5, 2019 visit, USGS Director Jim Reilly was given a tour of CalVO facilities, including the Operations Room. Here Emily Montgomery-Brown explains the networks that monitor California's threatening volcanoes.

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