Michigan · Mackinac County
Producer
Duncon Pit
Mackinac County, Michigan, United States
Sand and Gravel
Construction
⌖ Show on map
USGS source ↗
Commodities
Primary
Sand and Gravel, Construction
Commodity type
N
Economic & production
Development status
Producer
Identification
Deposit ID
10219612
Region
NA
Data score
D
Coordinates
46.1069, -85.84715
References
MSHA UPDATE LIST, NOV. 1979