Hobart centered his narrative on Cliff Mine, one of the leading producers of copper in the world and the primary employer in the town of Clifton.

Copper Country Journal brings to life a culture and community long since passed from the American landscape. It includes a wealth of information, both within the introduction and throughout the diary, about the copper industry from 1845-1865. Hobart centered his narrative on Cliff Mine, one of the leading producers of copper in the world and the primary employer in the town of Clifton. He provides firsthand accounts of the unsafe conditions in the mines, the workers and their families, and the impact of the mine on the employees and the community.