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Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsvil...

Significance: The Hillman Barge facility is significant in the commercial and industrial development of southwestern Pennsylvania as a fabricator of shipping vessels. Beginning as a distribution facility for c... More

Quincy Mining Company, Hancock, Houghton County, MI

Significance: Quincy was Michigan's second largest copper producer, and one of national and international importance. The mine was extremely long-lived and profitable. Unprocessed Field note material exists f... More

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