Delaware Mine Welcome Sign, Keweenaw Co., Michigan August
Gap in Rocks leading to Ancient Copper Pit, Keweenaw Co., Michigan August
Gap in Rocks leading to Ancient Copper Pit, Keweenaw Co., Michigan August
Ancient Copper Mining Pit, Keweenaw Co., Michigan August
Cover over Former Shaft, Keweenaw Co., Michigan August
Carbide Lamps at Museum, Keweenaw Co., Michigan August
Historic Photograph of Delaware Mine at Museum, Keweenaw Co., Michigan August
Mining Artifacts, Keweenaw Co., Michigan August
Delaware Mine Welcome Sign, Keweenaw Co., Michigan August
Door to Adit, Keweenaw Co., Michigan August
Delaware Mine Wooden Beam, Keweenaw Co., Michigan August
Delaware Mine Power Drill, Keweenaw Co., Michigan August
Delaware Mine Power Drill, Keweenaw Co., Michigan August
Adit, Keweenaw Co., Michigan August
Collapsed Beams, Keweenaw Co., Michigan August
Second View of Adit, Keweenaw Co., Michigan August
Third View of Adit, Keweenaw Co., Michigan August
Adit Wall showing Copper Harbor Conglomerate and Possibly Chrysocholla, Keweenaw Co., Michigan August
Fourth View of Adit, Keweenaw Co., Michigan August
Chimney from Pump House, Keweenaw Co., Michigan August
Information Sign for Pump House, Keweenaw Co., Michigan August
Pump House Machinery Keweenaw Co., Michigan August
Pump House Window Detail, Keweenaw Co., Michigan August
Pump House Wall, Keweenaw Co., Michigan August
Corner of Pump House, Keweenaw Co., Michigan August
Wall of Pump House Keweenaw Co., Michigan August