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Brandon Graham collecting a sample from a sediment exposure at Army Base Fort Drum, New York

Detailed Description

Brandon Graham collecting a sample from a sediment exposure at Army Base Fort Drum, New York. These samples were collected as part of an OSL (optically-stimulated luminescence) dating campaign in collaboration with Shannon Mahan of the USGS Luminescence Lab in Denver, CO.

Fall 2023 Photo Contest Winner: Grant Colip, USGS at Work category

Sources/Usage

Public Domain.