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Over a century of Yellowstone River streamflow measurements at Corwin Springs, MT

Over a century of Yellowstone River streamflow measurements at Corwin Springs, MT

Measuring streamflow is critical for assessing the health and status of river systems. One of the longest continuous records of streamflow is just...

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Volcano Watch — A Pūpū Platter of Earthquakes

Volcano Watch — A Pūpū Platter of Earthquakes

A pūpū platter is an assortment of appetizers commonly served at social gatherings in Hawaii. During one week in December 2023, Island of Hawaiʻi...

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The challenges of conducting scientific research in Bison Country

The challenges of conducting scientific research in Bison Country

Yellowstone National Park is a tapestry of natural wonders, where geysers erupt in spectacular displays, serene lakes mirror the vast skies, and...

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Volcano Watch — Sniffing out stealthy gas escape between Kīlauea’s eruptions

Volcano Watch — Sniffing out stealthy gas escape between Kīlauea’s eruptions

Kīlauea has erupted three times in 2023—January–March, June, and September—and has also experienced significant intrusive activity to the southwest of...

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How Yellowstone thermal features get their names

How Yellowstone thermal features get their names

Naming thermal features in Yellowstone is now a careful and deliberate process with significant opportunities for public input, although it once was...

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Volcano Watch — Opportunities to learn about the volcanoes in your backyard in January 2024

Volcano Watch — Opportunities to learn about the volcanoes in your backyard in January 2024

Volcanoes are a part of life for Hawaii residents. We live on the flanks, feeling earthquakes beneath our feet, smelling vog, and experiencing the...

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Announcing Island of Hawai‘i Volcano Awareness Month Programs in January 2024!

Announcing Island of Hawai‘i Volcano Awareness Month Programs in January 2024!

January is Volcano Awareness Month on the Island of Hawai‘i! HVO, in cooperation with Hawai‘i Volcanoes National Park, the University of Hawai‘i at...

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The Big Buttes of the Eastern Snake River Plain

The Big Buttes of the Eastern Snake River Plain

Big Southern Butte is one of the largest rhyolite domes in the world. Along with its neighboring siblings, it stands in sharp contrast to the sea of...

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Volcano Watch — Explosive eruptions from Kīlauea: beneficial or dangerous depending on location

Volcano Watch — Explosive eruptions from Kīlauea: beneficial or dangerous depending on location

Twenty-five years ago, the frequently explosive activity of Kīlauea was unappreciated. Since then, continuing research has emphasized Kīlauea’s past...

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Lidar data shed new light on “hidden” geological hazards near the northern entrance of Yellowstone National Park

Lidar data shed new light on “hidden” geological hazards near the northern entrance of Yellowstone National Park

Lidar data have just been released, for the first time, for Paradise Valley and the northern gateway corridor to Yellowstone National Park. These high...

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Volcano Watch — Volcano monitoring can be a risky business: how scientists work safely

Volcano Watch — Volcano monitoring can be a risky business: how scientists work safely

Active volcanoes are inherently hazardous places to work. Even when a volcano is quiet, volcanic gases, ground cracks, earthquakes, and uneven...

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The Mystery of Flagg Ranch, OR, the case of the unknown ignimbrite

The Mystery of Flagg Ranch, OR, the case of the unknown ignimbrite

Near the south boundary of Yellowstone National Park is a curious ash flow deposit of unknown origin. Geologists from Montana State University took on...

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