Dillon Adit

Dillon Adit is a past producer of gold, copper in Grand County, Utah, in USGS's medium output class. USGS gives a discovery year of 1896. It is one of 8 historic gold producers USGS lists in Grand County, and number 1 when they are sorted by output class.

Facts

USGS status
Past producer
Output class
medium (USGS class)
Commodities
Gold, Copper
Workings
Underground
Discovered
1896
County
Grand County
State
Utah
Land status (BLM data)
Federal land in a US Forest Service national forest or grassland
USGS record
10078708

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.