New Windsor: Azurite & Bornite Rockhounding in Carroll County, Maryland

Plan your visit

Generally open to casual rockhounding

County

Carroll County

State

Maryland

Nearest road

New Windsor Road

Postcode

21776

Coordinates

39.53633, -77.10523

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

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.

Best time to visit New Windsor

Comfortable months (45 to 90°F highs)

Best months: March to November. Typical highs run 85°F in midsummer and 40°F in midwinter, with winter lows near 22°F.

Climate normals: NOAA 1991-2020 monthlies, EMMITSBURG 2 SE station (14 mi away).

Geology at New Windsor

This spot sits on Sams Creek Formation, chlorite phyllite, mapped as chlorite phyllite; subordinate paragonite and muscovite and variable quartz; contains mica-albite-quartz layers that formed roughly 1000 to 485 million years ago. Metamorphic rock like this weathers into resistant float, and minerals that survive transport typically concentrate in nearby drainages.

Mapped unit

Sams Creek Formation, chlorite phyllite

Age

1000–485 Ma (Neoproterozoic to Cambrian)

Rock types

chlorite phyllite; subordinate paragonite and muscovite and variable quartz; contains mica-albite-quartz layers

Elevation

510 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.

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.

• Maryland Geological Survey
• Maryland DNR state park rules
• Calvert Marine Museum fossil guidance
• Community submissions reviewed against published agency rules