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Upper Midwest Environmental Sciences Center

UMESC - Celebrating 50 Years of Science for a Better World - 1959-2009

UMESC Gallery

Scientist studying the effects of fish predation: Full resolution

Scientist working in the field

Photo by USGS, UMESC, 1985

Usage: This image is public domain/of free use. Please refer to the USGS Copyright section for more details.

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URL: http://www.umesc.usgs.gov/images/photos/field_work_1985.html
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Page Last Modified: March 7, 2011