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A geophysicist records a gravity reading at Gibbon Falls in Yellowstone National

Detailed Description

Geophysicist Elske de Zeeuw-van Dalfsen (Royal Netherlands Meteorological Institute) collects a gravity reading from a station near Gibbon Falls in Yellowstone National Park. Gravity data collection was completed under Yellowstone National Park research permit 7074.

Sources/Usage

Public Domain.

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