Pahaquarry Copper Mine [SEP] located in the administrative territorial entity
Pahaquarry Copper Mine
The Pahaquarry Copper Mine is an abandoned copper mine located on the west side of Kittatinny Mountain presently in Hardwick Township in Warren County, New Jersey in the United States. Active mining was attempted for brief periods during the mid-eighteenth, mid-nineteenth, and early twentieth centuries but was never successful despite developments in mining technology and improving mineral extraction methods. Such ventures were not profitable as the ore extracted proved to be of too low a concentration of copper. This site incorporates the mining ruins, hiking
squirrels, chipmunks, gray fox, bobcats, beaver, black bears as well as a large variety of birds inhabit the mountain. Turkey Vultures and Red Tail Hawks are also common.
Fish such as trout, pickerel, and bass are also in the lakes.
Mining.
Copper mining began in the 1750s at the Pahaquarry Copper Mine, which is north of the Gap, off Old Mine Road. 
This mine is located in the Silurian High Falls Formation on the west side of the mountain. This sandstone