Finger Lakes State Park: Aragonite & Copiapite Rockhounding in Boone County, Missouri

Plan your visit

Generally open to casual rockhounding

County

Boone County

State

Missouri

Nearest road

East Peabody Haul Road

Postcode

65202

Coordinates

39.08028, -92.30311

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.

Geology at Finger Lakes State Park

This spot sits on Cherokee Group - Cabaniss Subgroup, Krebs Subgroup, mapped as shale, sandstone, and siltstone that formed roughly 325 to 300 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit

Cherokee Group - Cabaniss Subgroup, Krebs Subgroup

Age

325–300 Ma (Pennsylvanian)

Rock types

shale, sandstone, and siltstone

Elevation

730 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