Copper Hill Mine: Azurite & Barite Rockhounding in Crawford County, Missouri

Plan your visit

Permission required before collecting

County

Crawford County

State

Missouri

Nearest road

Watson Road

Postcode

63080

Coordinates

38.18721, -91.10819

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

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.

Best time to visit Copper Hill Mine

Comfortable months (45 to 90°F highs)

Best months: February to December. Typical highs run 90°F in midsummer and 42°F in midwinter, with winter lows near 22°F.

Climate normals: NOAA 1991-2020 monthlies, UNION station (19 mi away), adjusted for elevation.

Geology at Copper Hill Mine

This spot sits on Eminence Dolomite, Potosi Dolomite, mapped as dolostone that formed roughly 495 to 485 million years ago. Carbonate rock like this dissolves and weathers readily, so fresh road cuts, quarries, and creek exposures are typically the most productive ground.

Mapped unit

Eminence Dolomite, Potosi Dolomite

Age

495–485 Ma (Furongian)

Rock types

dolostone

Elevation

790 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.

• Missouri Geological Survey
• Mark Twain National Forest
• Missouri State Parks rules
• Community submissions reviewed against published agency rules