Middlesburge: Chrysocolla Rockhounding in Carroll County, Maryland

Quick details

Access

Permission required

County

Carroll County

State

Maryland

Nearest road

Sharrett Road

Postcode

21757

Coordinates

39.60752, -77.22180

Geology at Middlesburge

This spot sits on New Oxford Formation, mapped as sandstone and shale that formed roughly 250 to 200 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit

New Oxford Formation

Age

250–200 Ma (Triassic)

Rock types

sandstone and shale

Elevation

360 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Middlesburge

Best months: March to November. Typical highs run 86°F in midsummer and 40°F in midwinter, with winter lows near 22°F.

Climate normals: NOAA 1991-2020 monthlies, EMMITSBURG 2 SE station (6 mi away).

Land & collecting status

Permission required before collecting

Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Middlesburge

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

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