Peoria: Calamine & Cerussite Rockhounding in Ottawa County, Oklahoma

Updated June 2026

Peoria is a mapped rockhounding spot in Ottawa County, Oklahoma. Reported finds include calamine, cerussite, galena. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Check locally
County: Ottawa County
State: Oklahoma
Coordinates: 36.90357, -94.65571

Geology at Peoria

This spot sits on Keokuk and Reeds Spring Formations and St. Joe Group, mapped as chert and limestone that formed roughly 360 to 325 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: Keokuk and Reeds Spring Formations and St. Joe Group
Age: 360–325 Ma (Mississippian)
Rock types: chert and limestone
Elevation: 1,000 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 Peoria

Best months: September to July. Typical highs run 90°F in midsummer and 46°F in midwinter, with winter lows near 24°F.

Climate normals: NOAA 1991-2020 monthlies, MIAMI station (13 mi away), adjusted for elevation.

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ.

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 Peoria

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 Peoria.

Across the state line from Peoria

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

Peoria FAQ

Where is Peoria?+

Peoria is in Ottawa County, Oklahoma, at 36.90357, -94.65571.

What rocks and minerals can you find at Peoria?+

Peoria is reported to produce Calamine, Cerussite, Galena.

Is collecting allowed at Peoria?+

Confirm rules before collecting. Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Peoria?+

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 Peoria?+

The most comfortable months at Peoria are September to July.

How do I get to Peoria?+

Open the directions link to navigate to 36.90357, -94.65571 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Oklahoma

See all 36 Oklahoma spots →

Open Peoria on the map

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