The copper deposits of Michigan

Professional Paper 144
By:  and 



The copper district of Keweenaw Point, in the northern peninsula of Michigan, is the second largest producer of copper in the world.  The output of the district since 1845 has been more than 7,500,000,000 pounds and showed a rather steady and consistent increase from the beginning of production to the end of the World War in 1918, since which there has been a marked decrease.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title The copper deposits of Michigan
Series title Professional Paper
Series number 144
DOI 10.3133/pp144
Year Published 1929
Language English
Publisher U.S. Geological Survey
Description Report: xii, 238 p.; 51 Plates: 63.58 × 41.86 inches or smaller
Country United States
State Michigan
Scale 1000000
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details