Copper mining in the United States has been a major industry since the rise of the northern .. They later formed the Longfellow Copper Mining Co. in Las Cruces, New Mexico. They set up .. By 1732 the Gap mine in Lancaster County was operating, owned by shareholders including Gouverneur Morris and Thomas Penn.
Chronicles Part 2 . Penn Minerals! Classic Minerals and More .
A few comments relating to the historical background of copper mining in . In Pennsylvania, some rich copper ore was mined and processed at the .. The Tennessee Copper Company sent geologist Owen Kingman to investigate in 1956.