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Title: Ear Spring, Yellowstone National Park

Description: USGS scientist Dr. David P. Krabbenhoft sampling Ear Spring, Yellowstone National Park, Wyoming, for dissolved mercury species. Old Faithful is erupting in the background.

Location: USA

Photographer: , U.S. Geological Survey

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.

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Type: JPEG image - 39.98 KB
Dimensions: 720 x 540

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Tags: employee mercury scientist yellowstoneNationalPark