Mines

Mines in Maryland

Rare Context lists 28 mines in Maryland, United States. The largest is Havre de Grace Quarry, with 97 employees in 2025.

All mines

By primary commodity, most mines first, then by employees within each commodity.

MineCommodityCountyOwner or operatorEmployees
Casselman MineCoalGarrett CountyRosebud Mining Company57 2025
Job #3CoalAllegany CountyTri-Star Mining Inc38 2025
Cobra No 1CoalAllegany CountyCobra Mining, Inc.16 2025
No. 3 Airport JobCoalGarrett CountyCobra Mining, Inc.15 2025
Midland MineCoalAllegany CountySimkol Corp.14 2025
Cabin RunCoalAllegany County97 Mining Holding Company, LLC13 2025
Carlos SurfaceCoalAllegany CountyKTRV LLC10 2025
Jackson MountainCoalAllegany CountyARJ Construction Company10 2023
No. 4 Woodyard JobCoalGarrett CountyCobra Mining, Inc.7 2025
Taylor Lower BakerstownCoalGarrett CountyCobra Mining, Inc.7 2024
KoontzCoalAllegany CountyBeechwood Coal, LLC6 2025
Mt. ZionCoalGarrett CountyKTRV LLC5 2023
MidlandCoalAllegany CountyBeechwood Coal, LLC4 2025
#1 StripCoalGarrett CountyPine Mountain Coal Co. Inc.3 2025
No 1 StripCoalGarrett CountyG & S Coal Company Inc3 2021
No 1 StripCoalAllegany CountyCobra Mining, Inc.3 2025
JacksonCoalAllegany CountyC & S Coal LLC2 2025
Walker MineCoalAllegany CountyKTRV LLC1 2021
Taylor Highwall MineCoalGarrett CountyARJ Construction Company—
Merrick Sand & GravelIndustrial sandQueen Annes CountyMerrick Sand & Gravel19 2025
Tuckahoe SandIndustrial sandDorchester CountyChesterfield FARMS LLC2 2025
Rocky Ridge PlantShaleFrederick CountyBrickworks Limited4 2025
Cushwa PlantShaleWashington CountyBrickworks Limited—
Savage StoneCrushed graniteHoward CountyAggregate Management, Inc46 2025
S W Barrick & SonsCrushed limestoneFrederick CountyAggregate Management, Inc65 2025
Havre de Grace QuarryCrushed traprockHarford CountyVulcan Materials Company97 2025
Chesapeake MineralsQuartzCecil CountyYork Building Products Co Inc14 2025
Belvedere PlantSand and gravelCecil CountyYork Building Products Co Inc58 2025

Every mine in Maryland, with owners.All 28 in one file, each with its owner, commodity, resources and permit status. We research what the public sources leave out.

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