Abandoned Mines in Delaware

Abandoned Mining in Delaware

Federal databases record 34 abandoned, sealed, and historically closed mine locations in Delaware. These include mines officially abandoned under MSHA oversight and past producers documented in the USGS Mineral Resources Data System. Abandoned mines are a legacy of centuries of mineral extraction and can pose ongoing environmental and safety concerns for nearby communities.

Top Counties

County	Abandoned/Historical
New Castle County	14
Kent County	11
Sussex County	9

Abandoned Mine Sites

Mine	County	Commodity	Status	Source
American Minerals/ Wilmington, De.	New Castle	Chromium	Past Producer	MRDS
Bear Materials Llc	New Castle	Construction Sand and Gravel	Abandoned	MSHA
Barber Sand and Gravel Pit and Mill	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Chestnut Hill Mine	New Castle	Iron	Past Producer	MRDS
Clough and Caulk Pit and Mill	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Collins Mine and Plant	Sussex	Iron	Past Producer	MRDS
Constructors Sand and Gravel Pit	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
David G. Horsey & Sons Trucking	Sussex	Construction Sand and Gravel	Abandoned	MSHA
Deep Creek Mine	Sussex	Iron	Past Producer	MRDS
Delaware Brick Co. Pit	New Castle	Clay	Past Producer	MRDS
Delaware Brick Co. Pit and Mill	New Castle	Clay	Past Producer	MRDS
Delaware Sand and Gravel Pit	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
Delaware Sand and Gravel Pit	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
Diamond Materials, Llc	Kent	Construction Sand and Gravel	Abandoned	MSHA
Freeway Pit	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
Freeway Sand Pit	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
George Nashold Sand and Gravel Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Gravelly Delight Mine	Sussex	Iron	Past Producer	MRDS
Iron Hill Mine	New Castle	Iron	Past Producer	MRDS
James Sand Plant	Sussex	Construction Sand and Gravel	Abandoned	MSHA
L.d. Caulk Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Mine Hill Mine	Sussex	Iron	Past Producer	MRDS
Pine Creek Forge Mine	Sussex	Iron	Past Producer	MRDS
Porter Sand Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
St. Jones River Gravel Co Pit & Mill	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Staytons Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Sussex 3	Sussex	Sand, Industrial NEC	Abandoned	MSHA
Sussex Sand and Gravel Pit and Mill	Sussex	Sand and Gravel, Construction	Past Producer	MRDS
Tarburton Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Whittington Sand & Gravel Pit & Mil	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
William M. Killen Sand Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
William M. Killen Sand Pit	Kent	Sand and Gravel, Construction	Past Producer	MRDS
Woodlawn Sand & Gravel Pit	New Castle	Sand and Gravel, Construction	Past Producer	MRDS
Woodlawn Sand & Gravel Pit & Mill	New Castle	Sand and Gravel, Construction	Past Producer	MRDS

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