Palmer: Anglesite & Calcite Rockhounding in Washington County, Missouri
- Minerals reported
- 9
- Elevation
- 1,090 ft
- Best months
- February to November
Palmer is a mapped rockhounding spot in Washington County, Missouri. Reported finds include anglesite, calcite, cerussite, dolomite, galena, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Generally open to casual rockhounding
- County
- Washington County
- State
- Missouri
- Nearest road
- Palmer Road
- Coordinates
- 37.84644, -90.94445
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 Palmer
Comfortable months (45 to 90°F highs)
Best months: February 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, POTOSI 4 SW station (7 mi away).
Geology at Palmer
This spot sits on Eminence Dolomite, Potosi Dolomite, mapped as dolostone that formed roughly 495 to 485 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.
- Mapped unit
- Eminence Dolomite, Potosi Dolomite
- Age
- 495–485 Ma (Furongian)
- Rock types
- dolostone
- Elevation
- 1,090 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.
Today's weather
Is today a good day to go?
The app shows live weather, recent rain, and a daily rockhounding score for Palmer.
Get the appSources & 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
Found at Palmer
Each name 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 Palmer.
- Old MinesWashington County, Missouri · 16 mi awayBarite, Calcite, Galena
- BellviewIron County, Missouri · 16 mi awayActinolite
- Hinch Copper MineCrawford County, Missouri · 17 mi awayCopper, Cuprite, Limonite
- Bleeding Hill MineCrawford County, Missouri · 18 mi awayCopper, Cuprite, Goethite
- Haunted Ridge RocksWashington County, Missouri · 18 mi away
- GranitevilleIron County, Missouri · 19 mi awayActinolite, Apatite, Beryl
- BixbyIron County, Missouri · 19 mi awayBornite, Chalcocite, Chalcopyrite
- Iron MountainSaint Francois County, Missouri · 19 mi awayYellow Garnet, Apatite, Barite
Across the state line from Palmer
Palmer 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.
Palmer FAQ
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More rockhounding in Missouri
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Open Palmer on the map
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