Maine · Piscataquis County
Plant
Portland Monson Slate Co. Mill
Piscataquis County, Maine, United States
Slate
Dimension
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USGS source ↗
Commodities
Primary
Slate, Dimension
Commodity type
N
Economic & production
Development status
Plant
Identification
Deposit ID
10218477
Region
NA
Data score
D
Coordinates
45.27605, -69.48128
References
MSHA LIST 11-23-79 IS LAST ENTRY; ASSUME STATUS = CLOSEDPLANT PROCESSES SLATERCF LIST 10-28-81MSHA INSP. 1-31-79