About this location
Union Bridge, in Carroll County, Maryland, sits near a historically significant marble deposit — the Wakefield Marble, a variegated stone quarried in this area since the 1800s and used in notable buildings regionally. That history is real, but the site itself isn't accessible today. The historic quarry ground is now occupied by an active industrial limestone/cement quarry operated by Heidelberg Materials (formerly Lehigh Cement) — an active mine, not a hobbyist collecting site. The area locally known as "Marble Quarry Road" is now lined with private residential properties per county tax records. Between the active industrial operation and the surrounding private land, there's no legitimate public access point here, and this page exists mainly to document what was historically here rather than to send anyone out to collect.
Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.
Found Here
- Pink marble — the documented "Wakefield Marble" or Frederick/Carroll County variegated marble ran in pink, red, salmon, lavender, ruby, black, and white color varieties historically.
- UNVERIFIED: "Green marble" — this DB-listed color variety could not be confirmed in any source found; documented varieties for this deposit are pink, red, salmon, lavender, ruby, black, and white, not green.
Difficulty
Getting there
Not applicable — this location is closed. Union Bridge sits along MD-75 in western Carroll County.
Collecting here
Not applicable. The historic quarry ground is occupied by an active industrial cement/limestone operation, and the surrounding "Marble Quarry Road" area is now private residential property.
Know before you go
This location is closed to collecting. Land here is a mix of an active industrial quarry (Heidelberg Materials, private ownership, operational mine — trespassing on active quarry ground is both illegal and genuinely dangerous) and private residential parcels along the old quarry road. There is no public access point, historical marker trail, or collecting allowance documented for this site.
Location on Map
Coordinates: 39.55408, -77.17261
Nearby rockhounding locations
- New Windsor — Azurite, BorniteMD · 3.8 mi
- Middlesburge — ChrysocollaMD · 4.5 mi
- Dollyhyde Creek — Bornite, Pink CalciteMD · 6.2 mi
- near Le Gore — FossilMD · 7.4 mi
- Valley Quarry — Copper, EpidotePA · 17.4 mi
- Gettysburg — Copper, ChabazitePA · 17.4 mi
More Pink Marble locations in Maryland
Frequently asked questions
Can you collect marble at Union Bridge, Maryland?
No — the historic Wakefield Marble quarry ground is now occupied by an active Heidelberg Materials industrial quarry, and the surrounding area is private residential property. There is no public access.
What colors did the Union Bridge marble come in?
Documented varieties are pink, red, salmon, lavender, ruby, black, and white. A "green marble" listing in some databases is not confirmed by any source found for this deposit.
Is Union Bridge's marble quarry historically significant?
Yes — the Wakefield Marble was quarried here since the 1800s and used in notable regional buildings, though the historic operation is now superseded by a modern industrial cement/limestone quarry on the same ground.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Sources
- WebSearch synthesis (Maryland Geological Survey historic marble/limestone references, regional building-stone histories) — supports the Wakefield Marble deposit's identity, historic quarrying, and documented pink/red/salmon/lavender/ruby/black/white color range.
- WebSearch synthesis (Heidelberg Materials / Lehigh Cement Union Bridge facility references) — confirms an active industrial cement/limestone quarry operation on or near the historic marble quarry site.
- Carroll County tax assessment context (referenced via WebSearch synthesis) — supports "Marble Quarry Road" area being lined with private residential parcels today.
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