Nelson Horatio Darton

By National Cooperative Geologic Mapping Program 1900 (approx.)

Photo of Nelson Horatio Darton (1865-1948), one of the first USGS geologic mappers and scientific photographers.

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Detailed Description

Photo of Nelson Horatio Darton (1865-1948), one of the first USGS geologic mappers and scientific photographers.

Sources/Usage

Public Domain.