Danville Quarry: Calcite & Dolomite Rockhounding in Montgomery County, Missouri

Updated June 2026

Danville Quarry is a mapped rockhounding spot in Montgomery County, Missouri. Reported finds include calcite, dolomite, millerite, pyrite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Montgomery County
State: Missouri
Nearest road: MO J
Coordinates: 38.90059, -91.54169

Geology at Danville Quarry

This spot sits on ground mapped as limestone and sandstone that formed roughly 420 to 360 million years ago. Carbonate rock like this is the classic host for lead, zinc, and fluorite mineralization, which typically follows old cavities and replacement zones.

Age: 420–360 Ma (Early Devonian to Late Devonian)
Rock types: limestone and sandstone
Elevation: 760 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 Danville Quarry

Best months: March to November. Typical highs run 86°F in midsummer and 37°F in midwinter, with winter lows near 20°F.

Climate normals: NOAA 1991-2020 monthlies, FULTON station (22 mi away).

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.

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 Danville Quarry

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Danville Quarry.

Across the state line from Danville Quarry

Danville Quarry is close enough to the Missouri border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

McKee CreekTop pick in IllinoisPike County, Illinois · 72 mi awayGeode, Sphalerite

Danville Quarry FAQ

Where is Danville Quarry?+

Danville Quarry is in Montgomery County, Missouri, at 38.90059, -91.54169. Nearest road: MO J.

What rocks and minerals can you find at Danville Quarry?+

Danville Quarry is reported to produce Calcite, Dolomite, Millerite, Pyrite.

Is collecting allowed at Danville Quarry?+

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. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Danville Quarry?+

A rock hammer, gloves, and safety glasses cover old mining-district ground. Stay out of shafts and adits; the best specimens typically come from dump piles.

When is the best time to visit Danville Quarry?+

The most comfortable months at Danville Quarry are March to November.

How do I get to Danville Quarry?+

Open the directions link to navigate to 38.90059, -91.54169 in Google Maps. The nearest road is MO J.

More rockhounding in Missouri

See all 93 Missouri spots →

Open Danville Quarry on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.