Mines in Merrimack County, New Hampshire

Merrimack County, New Hampshire has 113 mine and mineral deposit locations documented in federal records from the USGS and MSHA. 28 of these are currently active mining operations. The most commonly recorded commodity is construction sand and gravel, with 34 sites. The table below lists all recorded mines in the county with links to individual site details.

All Mines in Merrimack County

Mine	Commodity	Type	Status	Source
Bow / Hooksett Town Line Pit	Construction Sand and Gravel	Surface	Active	MSHA
Boscawen Sand & Gravel	Crushed, Broken Granite	Surface	Active	MSHA
Concord Sand & Gravel	Construction Sand and Gravel	Surface	Active	MSHA
Cr04 Metso Jaw Crusher	Construction Sand and Gravel	Surface	Active	MSHA
Champagne Quality Aggregates	Construction Sand and Gravel	Surface	Active	MSHA
Clarke & Co. Earthworks Contractors	Construction Sand and Gravel	Surface	Active	MSHA
Foster Materials Inc	Construction Sand and Gravel	Surface	Active	MSHA
Gmi Sand Pit	Construction Sand and Gravel	Surface	Active	MSHA
Henniker Pit and Mill	Construction Sand and Gravel	Surface	Active	MSHA
Hooksett Gp #1	Construction Sand and Gravel	Surface	Active	MSHA
Hooksett N H Plant	Construction Sand and Gravel	Surface	Active	MSHA
Loudon Quarry	Construction Sand and Gravel	Surface	Active	MSHA
Metso Lt120	Crushed, Broken Stone NEC	Surface	Active	MSHA
Metso Portable 6007	Construction Sand and Gravel	Surface	Active	MSHA
On-Spec Sand & Gravel	Construction Sand and Gravel	Surface	Active	MSHA
Pembroke Sand & Gravel	Construction Sand and Gravel	Surface	Active	MSHA
Plourde Sand Hooksett Pit	Construction Sand and Gravel	Surface	Active	MSHA
Swenson Gray Quarry	Dimension Stone NEC	Surface	Active	MSHA
Assoc Minerals Consol/bow Nh.	Zirconium	Processing Plant	Producer	MRDS
Concord Gray Quarry	Granite	Surface	Producer	MRDS
Fillmore Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Henniker Pit & Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Hooksett Plant Gp-1	Sand and Gravel, Construction	Surface	Producer	MRDS
Loudon Pit & Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Manchester Sand, Gravel & Cement Co Quarry	Stone, Crushed/Broken		Producer	MRDS
Merrimack Contractors Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
New England Crush./hooksett Nh.	Stone, Crushed/Broken, Sand and Gravel, Construction	Surface	Producer	MRDS
Plourde Pit & Mill	Sand and Gravel, Construction	Surface	Producer	MRDS
Allenstown Aggregate	Crushed, Broken Granite	Surface	Intermittent	MSHA
Allenstown Materials Llc	Construction Sand and Gravel	Surface	Abandoned	MSHA
Arrowhead Archeology North, Llc	Construction Sand and Gravel	Surface	Abandoned	MSHA
Bickford Pegmatite	Silica, Beryllium, Garnet, Mica, Feldspar	Surface	Prospect	MRDS
Boscawen Sand & Gravel North	Construction Sand and Gravel	Surface	Abandoned	MSHA
Boston Lead Mine	Graphite	Surface	Past Producer	MRDS
Bow Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Bow Plant Gp-3	Sand and Gravel, Construction	Processing Plant	Plant	MRDS
Brown Brook Quartz	Silica		Prospect	MRDS
Brown Lenox Portable Jaw	Crushed, Broken Stone NEC	Facility	Abandoned	MSHA
Buswell's Mine	Lead		Past Producer	MRDS
Campbell Hill Quartz Deposit	Silica		Prospect	MRDS
Canterbury Foundry Sand Prospect 9	Silica		Prospect	MRDS
Chalk Pond Diatomite	Diatomite		Prospect	MRDS
Commercial Street Plant	Construction Sand and Gravel	Surface	Abandoned	MSHA
Concord Brick Co. Yard	Clay	Surface	Past Producer	MRDS
Concord Foundry Sand Prospect	Silica		Prospect	MRDS
Concord Mica Co/ Penacook, Nh	Mica	Processing Plant	Unknown	MRDS
Crushed Stone Operation	Stone, Crushed/Broken		Unknown	MRDS
Danbury Mica Mine	Mica	Surface	Past Producer	MRDS
Dunbarton Quartz Prospect	Silica		Prospect	MRDS
East Severance Hill Garnet Mine	Garnet	Surface	Past Producer	MRDS
Fillmore Pit	Sand and Gravel, Construction		Unknown	MRDS
Garnet Prospect	Garnet		Prospect	MRDS
Goodwin-Barsby	Construction Sand and Gravel	Surface	Intermittent	MSHA
Gp #1	Sand and Gravel, Construction		Unknown	MRDS
Henniker Pit & Mill Portable Cru	Construction Sand and Gravel	Surface	Intermittent	MSHA
Hackett Hill Pit & Mill	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Hall Mountain Quartz	Silica		Prospect	MRDS
Hennicker Crushed Stone Inc	Sand and Gravel, Construction		Past Producer	MRDS
Henniker Pit	Sand and Gravel, Construction		Unknown	MRDS
Hogdon Quarry	Talc-Soapstone	Surface	Past Producer	MRDS
Hooksett Crushed Stone C607	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Hooksett Pit & Mill	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Hooksett Quarry	Stone, Crushed/Broken		Unknown	MRDS
Hooksett Quarry	Stone, Crushed/Broken		Unknown	MRDS
Hooksett Quarry & Mill	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Jack Wells Pit	Construction Sand and Gravel	Surface	Abandoned	MSHA
Jake Patten Mica Prospect	Feldspar		Prospect	MRDS
John O. Morton Bldg. Design Div.	Sand and Gravel, Construction	Surface	Past Producer	MRDS
John Swenson Granite Co	Granite		Past Producer	MRDS
Lt 105	Construction Sand and Gravel	Surface	Intermittent	MSHA
Ladd Sand and Gravel Llc	Construction Sand and Gravel	Surface	Abandoned	MSHA
Loudon Sand and Gravel	Construction Sand and Gravel	Surface	Intermittent	MSHA
Metso Portable 6008	Construction Sand and Gravel	Surface	Intermittent	MSHA
Manchester Sand, Gravel & Cement Co	Sand and Gravel, Construction		Past Producer	MRDS
Manchester Sand, Gravel & Cement Co	Sand and Gravel, Construction		Past Producer	MRDS
Metso St. 2.8 Screener	Crushed, Broken Stone NEC	Surface	Intermittent	MSHA
Mica Queen Mine	Feldspar	Surface	Past Producer	MRDS
Michie Corporation Con-Agg Pit	Construction Sand and Gravel	Surface	Intermittent	MSHA
Michie Plant	Sand and Gravel, Construction		Unknown	MRDS
Ney Prospect	Copper	Underground	Past Producer	MRDS
North Wilmot Garnet Mine	Garnet	Surface-Underground	Past Producer	MRDS
Otterville I 89 Roadcut Uraninite Occurrence	Uranium		Occurrence	MRDS
Patsfield Sand & Gravel Corp.	Construction Sand and Gravel	Surface	Abandoned	MSHA
Pembroke Pit & Mill	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Pembroke Sand and Gravel Inc	Sand and Gravel, Construction		Past Producer	MRDS
Pickwick Mica Mine	Feldspar	Surface	Prospect	MRDS
Pinnacle Quartz	Silica		Prospect	MRDS
Pleasant Ponds Diatomite	Diatomite		Prospect	MRDS
Pleasant Swamp Diatomite	Diatomite		Prospect	MRDS
Plourde Sand Allenstown Quarry	Crushed, Broken Stone NEC	Surface	Abandoned	MSHA
Plourde Sand and Gravel Inc	Sand and Gravel, Construction		Past Producer	MRDS
Portable Chieftain 1700	Construction Sand and Gravel	Surface	Temporarily Idled	MSHA
Portable Crusher #1	Crushed, Broken Sandstone	Surface	Intermittent	MSHA
Portable Crusher #2	Crushed, Broken Sandstone	Surface	Intermittent	MSHA
Portable Crusher #3	Crushed, Broken Granite	Surface	Intermittent	MSHA
Portable Plant	Construction Sand and Gravel	Surface	Abandoned	MSHA
Portable Plant	Construction Sand and Gravel	Surface	Temporarily Idled	MSHA
Sand & Gravel Operation	Sand and Gravel, Construction		Unknown	MRDS
Sand & Gravel Pit	Sand and Gravel, Construction		Unknown	MRDS
Silverdale Mine		Underground	Prospect	MRDS
Silverdale Mine	Lead, Zinc		Past Producer	MRDS
South Danbury Pit	Construction Sand and Gravel	Surface	Intermittent	MSHA
Town of Warner	Construction Sand and Gravel	Surface	Temporarily Idled	MSHA
Unnamed Mine	Talc-Soapstone	Surface	Past Producer	MRDS
Unnamed, Sunapee Mtns.	Bismuth		Occurrence	MRDS
W.e. Briggs Property	Mica, Feldspar		Prospect	MRDS
Warner Aggregates, Llc	Construction Sand and Gravel	Surface	Abandoned	MSHA
Wausau Abrasive Co. Mine	Garnet	Surface	Past Producer	MRDS
Weaver Bros. Constr. Co., Inc. Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Weaver Brothers Construction Co Inc	Sand and Gravel, Construction		Past Producer	MRDS
West Hooksett Quartz	Silica		Prospect	MRDS
West Severance Hill	Garnet		Prospect	MRDS
Wilmot Mica Deposit	Mica	Surface	Prospect	MRDS