USGS Multimedia Gallery
Title: Luna Leopold
Former USGS Chief Hydrologist Luna Leopold writes down his reflections during a research expedition in Idaho.
Location: Middle Fork Salmon River, ID, USA
Date Taken: 1966
Photographer: William Emmett , USGS (retired)
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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