A Marquette tour guide tells us about copper mining in the Upper Peninsula — which dates back 7,000 years at the Porcupine Mountains and Keweenaw Peninsula.

The presence of toxic copper also indicates a thriving tool-making industry. Moreover, the new research reveals that industrial pollution has a deeper history than is typically recognized.

Pictured: Solomon's Pillars in the Timna Valley, Israel. Ancient copper mining and smelting activities here have been linked to the Biblical King Solomon.

A new analysis of soil samples from the Giza plateau reveals copper and arsenic contamination dating back over 5,000 years from using metal tools, especially those used to build the pyramid complex.

A small ancient tool was unearthed in the canonical gardens of Frombork, Poland, that dates back 500 years. The find was a rare compass made from copper. Its shape slightly resembles that of a ...

Ancient Egyptians used so much copper, they polluted the harbor near the pyramids, study ... Oldest wooden tools unearthed in East Asia show that ancient humans made planned trips to dig up edible ...