22 Mines in Maryland

• Allender Road Pit (Baltimore County)
• Bradshaw Pit (Baltimore County)
• Campbell Quarry (Baltimore County)
• Caves Ore Bank (Baltimore County)
• Cross Ore Bank (Baltimore County)
• Cumberland Quarry (Allegany County)
• Dargan Quarry (Washington County)
• Days Cove Pit (Baltimore County)
• Gunpowder Quarry (Baltimore County)
• Hydes Quarry (Carroll County)
• Le Gore Quarry (Frederick County)
• Maryland Mine (Montgomery County)
• McClenahan Granite Quarry (Cecil County)
• Number 1 Mine (Garrett County)
• Oregon Ore Bank (Baltimore County)
• Pinesburg Quarry (Washington County)
• Port Deposit Quarry (Cecil County)
• Sausman Mine (Garrett County)
• Schwartz Pit (Baltimore County)
• Seneca Quarry (Montgomery County)
• Smuck Pit (Baltimore County)
• Wilson Quarry (Washington County)