White County was an important center of gold mining and this abandoned tunnel and equipment along the Chattahoochee at Helen are remnants of the boom era of the late 19th century.
The Plattsburgh Mining Company of New York was involved in the area, most notably with the England Mine.
Vanishing Georgia: Photographs by Brian Brown 
Hi Brian, what did you find inside the metal dumpster box?
I dared not look 🙂