Boom Copper: The Story of the First U.S. Mining Boom by Angus Murdoch.

The best single volume regarding the famous copper boom in Calumet, Michigan. This book was written as a purely informal view of the life and times of an almost forgotten American mining district, reflecting the human side of the story of lake copper. Before Boom Copper appeared, there was no comprehensive history of what had been one of America's premier mining districts. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive.