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Explore Search: Three Sisters Area

Three Sisters volcanoes (left to right - South, Middle, and North) ...
Three Sisters

Three Sisters

Three Sisters

The three aligned stratovolcanoes of North, Middle, and South Sister are closely spaced, but they display very little family resemblance.

Three Sisters volcanoes (left to right - South, Middle, and North) ...
Three Sisters

Three Sisters

Three Sisters

The three aligned stratovolcanoes of North, Middle, and South Sister are closely spaced, but they display very little family resemblance.

Filter Total Items: 30
slideshow
South, Middle, and North Sister volcanoes viewed aerially from the ...

Three Sisters Uplift
publication
image of publications layered on a wooden table

Principal facts for two-hundred-thirty-three gravity stations near the Three Sisters Wilderness Area, Oregon

publication
image of publications layered on a wooden table

Report of hydrologic investigations in the Three Sisters area of central Oregon, Summer 2001

Charts or Graphs
Three Sisters, Oregon simplified hazards map showing potential impa...

Three Sisters, OR simplified hazards map
Photography
Temporary GPS stations collect data to analyze area deformation at ...

Temporary GPS stations recording area deformation at Three Sisters, OR
publication
image of publications layered on a wooden table

“Our vanishing glaciers”: One hundred years of glacier retreat in Three Sisters Area, Oregon Cascade Range

publication
image of publications layered on a wooden table

Digital data for volcano hazards of the Three Sisters region, Oregon

map
Collage of USGS Maps.

Geologic map of the Three Sisters Wilderness, Deschutes, Lane, and Linn counties, Oregon

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Database for the Geologic Map of Three Sisters Volcanic Cluster, Cascade Range, Oregon

publication
image of publications layered on a wooden table

Magmatic activity beneath the quiescent Three Sisters volcanic center, central Oregon Cascade Range, USA

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Results of repeated leveling surveys near the Three Sisters volcanic center, central Oregon, 2002-2008

Featured Films and Shorts
Deformation and geochemical anomalies near South Sister, Oregon

Tracking uplift near Three Sisters volcanoes, using semi-permanent GPS instruments
publication
image of publications layered on a wooden table

Geodetic observations and modeling of magmatic inflation at the Three Sisters volcanic center, central Oregon Cascade Range, USA

publication
image of publications layered on a wooden table

Mantle helium and carbon isotopes in Separation Creek geothermal springs, Three Sisters area, central Oregon: Evidence for renewed volcanic activity or a long term steady state system?

publication
image of publications layered on a wooden table

Continuing inflation at Three Sisters volcanic center, central Oregon Cascade Range, USA, from GPS, leveling, and InSAR observations

Charts or Graphs
Interferogram image made from InSAR monitoring, showing 1995-2001 ground uplift.

Interferogram image made from InSAR monitoring, showing 1995-2001 ground uplift in the Three Sisters.
Photography
Image: Layers of Ice, Hayden Glacier

Layers of Ice, Hayden Glacier
Photography
Image: Moraine Lake

Moraine Lake
Photography
Image: Cascade Volcanoes

Cascade Volcanoes
Center News
USGS

Volcano Watch — Earthquakes rock uplifting area in Central Oregon Cascades

Photography
Volcano with some snow surrounded by a forest plus a line of round shaped rock outcrops that don't have trees.

View northwestward of South Sister volcano and unforested "Devils Chain" rhyolite lava domes.
Center News
Interferogram spanning 2020-2021 and showing uplift west of South Sister

Scientists detect rejuvenated uplift near South Sister volcano.

map
Collage of USGS Maps.

Geologic map of the Bend 30- x 60-minute quadrangle, central Oregon

Presentations and Events

Mitigating Hazards at Cascade Range Volcanoes
Presentations and Events
RAD Perspectives Webinar Intro Slide

RAD Perspectives
Podcasts
USGS

Groundwater 101
Presentations and Events

PubTalk 1/2020 — The Rise of the USGS in Space Exploration
Presentations and Events

PubTalk 2/2018 — USGS Cascades Volcano Observatory
video

Team Manatee: A Community Working Together
Presentations and Events
thumbnail

PubTalk-11/2021: Busting Myths About One of the Largest Volcanic Systems in the World - The Top 10 Misconceptions about Yellowstone Volcanism
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