Portis Mine

Portis Mine is a past producer of gold, silver, copper in Franklin County, North Carolina, in USGS's medium output class. USGS records production from 1835 to 1936. It is one of 3 historic gold producers USGS lists in Franklin County, and number 1 when they are sorted by output class.

Facts

USGS status
Past producer
Output class
medium (USGS class)
Commodities
Gold, Silver, Copper
Workings
Surface
Production years
1835 to 1936
Discovered
1835
County
Franklin County
State
North Carolina
Land status (BLM data)
Land status not determined in the BLM dataset
USGS record
10084226

Source: USGS Mineral Resources Data System (retrieved 2026-10-13). The database was last updated around 2011, positions can be approximate, and "producer" does not mean a mine is operating today. "Output class" is a code whose meaning changed over the years, so compare sites inside this data and do not read it as tonnage.

Land status comes from the BLM Surface Management Agency dataset and can be out of date. Check ownership before you go near any mine site.