Tumco Mine

Tumco Mine is a past producer of gold in Imperial County, California, in USGS's large output class. USGS gives a discovery year of 1884. It is one of 50 historic gold producers USGS lists in Imperial County, and number 1 when they are sorted by output class.

Facts

USGS status
Past producer
Output class
large (USGS class)
Commodities
Gold
Discovered
1884
County
Imperial County
State
California
Land status (BLM data)
Federal land managed by the Bureau of Land Management
USGS record
10065058

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.

This location is mapped as federal land. Public land is not an invitation to enter old workings. Ask the managing agency about access, claims and closures.