Title: Beyond the boundaries
First published: 1997
Subjects: History, Copper industry and trade, 19th century, Michigan, Copper miners, Keeweenaw Peninsula, Keweenaw Peninsula, Superior, lake, Copper mines and mining, Mines and mineral resources, united states
Places: Michigan, Keweenaw Peninsula
Time periods: 19th century
LC classification: HD9539.C7 U547 1997