Mines in New Haven County, Connecticut

New Haven County, Connecticut has 231 mine and mineral deposit locations documented in federal records from the USGS and MSHA. 39 of these are currently active mining operations. The most commonly recorded commodity is sand and gravel, construction, with 40 sites. The table below lists all recorded mines in the county with links to individual site details.

All Mines in New Haven County

Mine	Commodity	Type	Status	Source
North Branford Quarry	Crushed, Broken Traprock	Surface	Active	MSHA
Quarry No 2 Southbury	Crushed, Broken Limestone NEC	Surface	Active	MSHA
Stony Creek	Dimension Stone NEC	Surface	Active	MSHA
Wallingford Quarry	Crushed, Broken Stone NEC	Surface	Active	MSHA
York Hill Mine & Mill	Crushed, Broken Stone NEC	Surface	Active	MSHA
Basalt Rock Quarry No. Dk-013	Stone, Crushed/Broken		Producer	MRDS
Basalt Rock Quarry No. Ej-012	Stone, Crushed/Broken		Producer	MRDS
Beacon Falls Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
C & C Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Cheshire North Haven Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Colonial Sand & Gravel Co. Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Crushed Basalt Rock Quarry No. Dj-007	Stone, Crushed/Broken		Producer	MRDS
D & J Quarry	Stone	Surface	Producer	MRDS
Derby Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Dolerite Rock Quarry No. Dk-015	Stone, Crushed/Broken		Producer	MRDS
Falls Road Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Finco Mine	Sand and Gravel, Construction	Surface	Producer	MRDS
Frontage Road Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Hamden Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Hamden Quarry	Stone, Crushed/Broken		Producer	MRDS
Hamden Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
Mariano Pit	Sand and Gravel, Construction, Stone, Crushed/Broken	Surface	Producer	MRDS
Meridan-Wallingford Mine	Sand and Gravel, Construction	Surface	Producer	MRDS
Mesa Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Molsick Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
North Branford Plant Number 7	Stone, Crushed/Broken		Producer	MRDS
North Branford Quarry & Plant #7	Stone, Crushed/Broken	Surface	Producer	MRDS
Pearl Lake Road Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Pine Rock Dolerite Quarries	Stone, Crushed/Broken		Producer	MRDS
Pine Rock Quarry	Stone, Crushed/Broken		Producer	MRDS
Pine Rock Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
Prospect Quarry & Plant	Sand and Gravel, Construction	Surface	Producer	MRDS
Quarry No. 2 Southbury	Sand and Gravel, Construction	Surface	Producer	MRDS
Rice Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Rimmon Road Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Southford Quartz Pegmatite Quarry	Quartz		Producer	MRDS
Stony Creek Pink Granite Quarry	Granite	Surface	Producer	MRDS
Wallingford Quarry #1 Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
York Hill Mine Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
(Facility) Aluminum Smelters Inc/new Haven, Ct	Aluminum	Processing Plant	Plant	MRDS
Beacon Falls Quarry	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Bluestone Quarry	Crushed, Broken Granite	Surface	Abandoned	MSHA
Barite Mine	Barium-Barite	Surface	Past Producer	MRDS
Barite Mine	Barium-Barite	Surface	Past Producer	MRDS
Barite Mine No. Dj.010	Barium-Barite	Surface	Past Producer	MRDS
Barite Occurrence No. Dj-010	Barium-Barite		Past Producer	MRDS
Bart Lo Russo & Sons Inc	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Basalt Rock Quarries No. Ck-007	Stone, Crushed/Broken		Past Producer	MRDS
Basalt Rock Quarry No. Dj-0	Stone, Dimension	Surface	Past Producer	MRDS
Basalt Rock Quarry No. Dk-011	Stone, Crushed/Broken		Past Producer	MRDS
Basalt Rock Quarry No. Dk-013	Stone, Dimension	Surface	Past Producer	MRDS
Basalt Rock Quarry No. Dk-014	Stone, Crushed/Broken		Past Producer	MRDS
Basalt Rock Quarry No. Dk-014	Stone, Dimension	Surface	Past Producer	MRDS
Basalt Rock Quarry No. Dk-022	Stone, Crushed/Broken		Past Producer	MRDS
Basalt Rock Quarry No. Ej-011	Stone, Crushed/Broken		Past Producer	MRDS
Basalt Rock Quarry No. Ej-011	Stone, Dimension	Surface	Past Producer	MRDS
Bassett Arsenopyrite Mine	Arsenic	Surface	Past Producer	MRDS
Bassett's Arsenopyrite Mine	Arsenic		Occurrence	MRDS
Beacon Falls Pit	Sand and Gravel, Construction		Past Producer	MRDS
Beacon Falls Wash Plant #2	Construction Sand and Gravel	Surface	Abandoned	MSHA
Bellamy Copper Valley Mine	Sulfur, Copper, Barium-Barite		Past Producer	MRDS
Bellamy-Copper Valley Mine	Copper	Surface-Underground	Past Producer	MRDS
Blue Rock Portable	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Bog Iron Mine	Iron	Surface	Past Producer	MRDS
Bogue Mill	Stone, Crushed/Broken		Unknown	MRDS
Bridgeport Steel/ Milford, Ct.	Iron	Processing Plant	Plant	MRDS
Brooklyn Granite Gneiss Quarry	Stone		Past Producer	MRDS
Brooklyn Quarry	Granite	Surface	Past Producer	MRDS
Brownstone Quarry	Flagstone	Surface	Past Producer	MRDS
Brownstone Sandstone Rock Quarries No. Dj-037	Stone, Dimension		Past Producer	MRDS
Capital Heavy Hauling Llc	Construction Sand and Gravel	Surface	Abandoned	MSHA
Cheshire Barite Prospect	Barium-Barite	Surface	Past Producer	MRDS
Cheshire Barytes Co. Mine	Barium-Barite		Past Producer	MRDS
Cheshire Mining and Manufacturing Co. Barite Mine	Barium-Barite		Past Producer	MRDS
Cheshire Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Cheshire Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Coe Lime Co. Quarry	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Colonial Sand and Gravel Co. Pit	Sand and Gravel, Construction		Past Producer	MRDS
Copper Mine	Copper	Surface	Past Producer	MRDS
Copper Mine No. Dj-038	Copper		Past Producer	MRDS
Copper Occurrences No. Ek-003	Copper		Occurrence	MRDS
Copper Prospect No. Dj-012	Copper		Occurrence	MRDS
Copper Prospect No. Dk-006	Copper		Occurrence	MRDS
Copper Prospect No. Dk-008	Sulfur, Copper		Past Producer	MRDS
Copper Prospect No. Ek-002	Copper		Occurrence	MRDS
Copper Valley Mine		Underground	Past Producer	MRDS
Cross Rock Mine	Copper	Surface	Past Producer	MRDS
Cross-Rock Copper Mine	Sulfur, Copper, Barium-Barite		Past Producer	MRDS
Crushed Basalt Rock Quarry No. Dj-006	Stone, Crushed/Broken		Past Producer	MRDS
Crushed Basalt Rock Quarry No. Dj-008	Stone, Crushed/Broken		Past Producer	MRDS
Crushed Diabase Rock Quarry No. Dj-	Stone, Dimension	Surface	Past Producer	MRDS
Crushed Diabase Rock Quarry No. Dj-014	Stone, Crushed/Broken		Past Producer	MRDS
Crushed Diabase Rock Quarry No. Dj-016	Stone, Crushed/Broken		Past Producer	MRDS
Crushed Diabase Rock Quarry No. Dj-017	Stone, Crushed/Broken		Past Producer	MRDS
Crushed Trap Rock Quarry No. Dk-007	Stone, Crushed/Broken		Past Producer	MRDS
Crushed Trap Rock Quarry No. Dk-007	Stone, Dimension	Surface	Past Producer	MRDS
Defeo Portable Plant	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Davidson Granite Gneiss Rock Quarry	Stone, Crushed/Broken		Past Producer	MRDS
Davidson Quarry	Granite	Surface	Past Producer	MRDS
Derby Sand and Gravel Pit	Sand and Gravel, Construction		Past Producer	MRDS
Diabase Rock Quarry No. Dj-0	Stone, Dimension	Surface	Past Producer	MRDS
Dolerite Rock Quarry # Dk-018	Stone, Dimension	Surface	Past Producer	MRDS
Dolerite Rock Quarry No. Dk-016	Stone, Crushed/Broken		Past Producer	MRDS
Dolerite Rock Quarry No. Dk-018	Stone, Crushed/Broken		Past Producer	MRDS
Dolerite Rock Quarry No. Dk-020	Stone, Crushed/Broken		Past Producer	MRDS
Dolerite Rock Quarry No. Dk-021	Stone, Crushed/Broken		Past Producer	MRDS
East Haven Trap Rock Quarry Llc	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Fountain Lakes Quarry	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Goliath-7	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Gaylord Copper Prospect	Sulfur, Copper		Past Producer	MRDS
Gneiss Rock Quarries No. Ek-033	Stone		Past Producer	MRDS
Gneiss Rock Quarry No. Ek-016	Stone		Past Producer	MRDS
Gneiss Rock Quarry No. Ek-025	Stone		Past Producer	MRDS
Gneissic Rock Or Feldspar Pegmatite Quarry No. Ck-009	Stone		Past Producer	MRDS
Gold Mine	Gold	Surface	Past Producer	MRDS
Golden Parlour Copper Mine	Copper	Surface	Past Producer	MRDS
Gorman Aggregates Operation	Sand and Gravel, Construction		Unknown	MRDS
Granitic Gneiss Rock Quarry No. Ek-012	Stone		Past Producer	MRDS
Granitic Gneiss Rock Quarry No. Ek-013	Stone		Past Producer	MRDS
Granitic Gneiss Rock Quarry No. Ek-024	Stone		Past Producer	MRDS
Granitic Gneiss Rock Quarry No. Ek-026	Stone		Past Producer	MRDS
Green Marble Quarry	Marble, Dimension	Surface	Past Producer	MRDS
Haynes Aggregates - Seymour Llc	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Hamden Pit	Sand and Gravel, Construction		Past Producer	MRDS
Hamden Sand and Gravel Co. Pit	Sand and Gravel, Construction		Past Producer	MRDS
Haynes Aggregates - Naugatuck, Llc	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Hoadley Hoadly Neck Quarries	Granite	Surface	Past Producer	MRDS
Hoadly Neck Granite Gneiss Rock Quarries	Stone, Dimension		Past Producer	MRDS
Holbrook Granite Gneiss Rock Quarry	Stone, Dimension		Past Producer	MRDS
Holbrook Quarry	Granite	Surface	Past Producer	MRDS
Jackson St.	Construction Sand and Gravel	Surface	Abandoned	MSHA
Jinny Hill Barite Mine	Barium-Barite		Past Producer	MRDS
Jinny Hill Mine	Copper	Underground	Past Producer	MRDS
Kpi-Jci K300+6203cc(sc26)	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Kettletown Road Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Lokotrack #1	Construction Sand and Gravel	Surface	Abandoned	MSHA
Leete Island Granite Rock Quarry	Stone, Dimension		Past Producer	MRDS
Leete Island Quarry	Granite	Surface	Past Producer	MRDS
Limestone Quarry #dk-009	Limestone, Dimension	Surface	Past Producer	MRDS
Limestone Quarry No. Ck-008	Limestone, General		Past Producer	MRDS
Limestone Quarry No. Dk-009	Limestone, General		Past Producer	MRDS
Limestone Quarry No. Dk-010	Limestone, General		Past Producer	MRDS
Limestone Rock Quarry No. El-002	Stone		Past Producer	MRDS
Lorusso & Sons, Inc.	Construction Sand and Gravel	Surface	Abandoned	MSHA
McCloskey R155(sc40)s/n-82130	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Metso Lt106(sc33)s/n-78420	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Metso Lt106(sc34)s/n-78238	Construction Sand and Gravel	Surface	Abandoned	MSHA
Maltby Lakes Mine	Lead	Surface	Past Producer	MRDS
Marble Lime Rock Quarry No. Ek-009	Limestone, General		Past Producer	MRDS
Marble Quarry	Marble, Dimension	Surface	Past Producer	MRDS
McCloskey R105(sc25)s/n-70845	Crushed, Broken Stone NEC	Surface	Temporarily Idled	MSHA
Meridan-Wallingford Mine	Sand and Gravel, Construction		Past Producer	MRDS
Metso Hp200(sc21)s/n-76995	Crushed, Broken Stone NEC	Surface	Temporarily Idled	MSHA
Metso Hp300(sc19)s/n-72775	Construction Sand and Gravel	Surface	Temporarily Idled	MSHA
Metso Lt106(sc22)s/n-77205	Crushed, Broken Stone NEC	Surface	Temporarily Idled	MSHA
Milford Green Marble Quarry	Marble, Dimension	Surface	Past Producer	MRDS
Milford Quarry	Stone	Surface	Past Producer	MRDS
Mill Rock Dolerite Quarry # Dk-0115	Stone, Dimension	Surface	Past Producer	MRDS
Mitchell Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Nathan & William Barite Mine	Barium-Barite	Surface	Past Producer	MRDS
Nathan Booth and William Hinman Barite Mine	Barium-Barite		Past Producer	MRDS
Naugatuck Plant	Iodine	Processing Plant	Plant	MRDS
New Haven Mineral Co. Barite Mine	Barium-Barite		Past Producer	MRDS
Norcross Granite Gneiss Rock Quarries	Stone, Dimension		Past Producer	MRDS
Norcross Quarry	Granite	Surface	Past Producer	MRDS
North Branford Quarry	Stone, Crushed/Broken		Unknown	MRDS
Northford Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
O & G Prospect Quarry #3	Crushed, Broken Granite	Surface	Intermittent	MSHA
Oak Ledge Properties Llc	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Old Stony Creek Quarry	Granite	Surface	Past Producer	MRDS
Opie Quarry	Granite	Surface	Past Producer	MRDS
Oronoque Pit	Sand and Gravel, Construction	Surface	Unknown	MRDS
Oxford Town Center Llc	Crushed, Broken Granite	Surface	Abandoned	MSHA
Pearl Lake Road Pit	Sand and Gravel, Construction		Past Producer	MRDS
Portable Crusher	Construction Sand and Gravel	Surface	Abandoned	MSHA
Potter Granite Gneiss Rock Quarry	Stone, Dimension		Past Producer	MRDS
Potter Quarry	Granite	Surface	Past Producer	MRDS
Prospect Plant	Sand and Gravel, Construction		Past Producer	MRDS
Quarries	Stone, Dimension	Surface	Past Producer	MRDS
Quarries	Stone, Dimension	Surface	Past Producer	MRDS
Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Rice Pit	Construction Sand and Gravel	Surface	Abandoned	MSHA
Rice Pit	Sand and Gravel, Construction		Past Producer	MRDS
Rimmon Road Pit	Sand and Gravel, Construction		Past Producer	MRDS
Riverview	Ground Silica	Surface	Abandoned	MSHA
Split Rock	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Sachem Head Granite Gneiss Rock Quarry	Stone, Dimension		Past Producer	MRDS
Sacher Hill Sachem Head ? Quarry	Granite	Surface	Past Producer	MRDS
Sandstone Quarry	Flagstone	Surface	Past Producer	MRDS
Sandstone Quarry	Flagstone	Surface	Past Producer	MRDS
Sandstone Quarry	Flagstone	Surface	Past Producer	MRDS
Sanitary Landfill	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Seymour Arsenic & Nickel Mine			Past Producer	MRDS
Seymour Ct	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Seymour Nickel Mine Brook Arsenic and Nickel Mine.	Nickel, Arsenic		Past Producer	MRDS
Seymour Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Silver Mine	Silver	Surface	Past Producer	MRDS
Silver Prospect No. Dk-019	Silver		Occurrence	MRDS
Southbury Supply Pit	Sand and Gravel, Construction		Past Producer	MRDS
Southford Pegmatite Quarry	Feldspar	Surface	Past Producer	MRDS
Southington Pit	Sand and Gravel, Construction		Past Producer	MRDS
Stevenson Bowers Hill Copper Mine	Copper		Past Producer	MRDS
Stevenson Mine	Copper	Underground	Past Producer	MRDS
Stiles Mine	Clay		Past Producer	MRDS
Stiles Mine	Clay	Surface	Past Producer	MRDS
Stony Creek Granite Gneiss Quarries	Stone, Dimension		Past Producer	MRDS
Stony Creek Granite Gneiss Quarries	Granite	Surface	Past Producer	MRDS
Stony Creek Pink Granite Quarry	Granite		Past Producer	MRDS
Tallman Mine	Copper	Underground	Past Producer	MRDS
Tallman's Copper Mine	Sulfur, Copper, Barium-Barite		Past Producer	MRDS
Talmadge Sand and Gravel Mine	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Townsend Property	Copper		Occurrence	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Traprock Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Valley Sand & Gravel Corp.	Construction Sand and Gravel	Facility	Abandoned	MSHA
Waterbury Quarry	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Waterville Materials	Crushed, Broken Stone NEC	Surface	Temporarily Idled	MSHA
Watertown Ave	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Wheeler Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Willingford Quarry	Sand and Gravel, Construction	Surface	Past Producer	MRDS
York Hill Quarry	Stone, Crushed/Broken		Unknown	MRDS