A Contribution To The Geology Of The Northern Black Hills

"A Contribution To The Geology Of The Northern Black Hills" by John Duer Irving presents a detailed geological survey of a significant region in South Dakota. This study offers invaluable insights into the geological composition, mineral resources, and historical mining activities within the Northern Black Hills. Irving's work meticulously documents the stratigraphic layers, tectonic structures, and mineral deposits, providing a comprehensive understanding of the area's geological history.

Originally published as part of the broader geological investigations of the United States, this contribution remains a vital resource for geologists, environmental scientists, and historians interested in the geological evolution and resource management of the American West. It serves as a foundational text for understanding the complex interplay between geological processes and human activities in a region renowned for its natural beauty and rich mining heritage.

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