Agate Quarry
MSHA Mine ID: 2100013
Material Type
Dimension Granite
Mine Type
Surface
Classification Confidence
95% (HIGH)
Location Status
VERIFIED
Operator Information
Operator
Cold Spring Granite Company
Controller
Patrick Alexander; Michael O'Connor
Employees
2
Location
County: Big Stone
State: MN
Country: US
Data Source
US_MSHA
Snapshot: 2026-01-30
Classification: vv1
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