Research2.8 mi
Quarry
Phosphate
USGS ResearchIOWA LOCAL FIELD REGION
Driftless & Mississippi Bluff Geology Rockhounding Guide
Karst, bluff, river and fossil geology in northeast Iowa.
LOCAL INTERACTIVE MAP
Driftless & Mississippi Bluff Geology local map
Explore nearby Iowa records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.
Map
Land intelligence
Precision
This hub map shows nearby records only.Land and claim layers are planning aids, not collecting permission.
Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.
Mapped leads in Driftless & Mississippi Bluff Geology
The records below may represent collecting sites, managed programs, protected resources or research-only geology. Their individual status is more important than proximity.
Research3.6 mi
Fitzpatrick Mine
Lead, Zinc
USGS ResearchResearch3.7 mi
Fitzpatrick Mine
Zinc, Lead
USGS ResearchResearch6.3 mi
Outcrop
Phosphate
USGS ResearchResearch11.8 mi
Twin Springs Quarry
Phosphate
USGS ResearchResearch12.1 mi
Roadcut
Phosphate
USGS ResearchResearch12.6 mi
Roadcut
Phosphate
USGS ResearchResearch12.7 mi
Durango Drybone Mine
Zinc, Lead
USGS ResearchResearch12.8 mi
Durango Drybone Mine Ewing Diggings
Lead, Zinc
USGS ResearchResearch13.5 mi
Bonson Mine
Zinc, Lead
USGS ResearchResearch13.5 mi
Roadcut
Phosphate
USGS ResearchResearch13.6 mi
Bonson Mine
Zinc, Lead, Iron
USGS ResearchResearch13.7 mi
Holmes Mine
Lead, Zinc
USGS ResearchResearch14.2 mi
Beecher West Dubuque Quarry
Mineral resource occurrence
USGS ResearchResearch14.3 mi
Kann Mine
Lead, Zinc
USGS ResearchResearch14.3 mi
Kann Mine
Lead
USGS ResearchResearch14.4 mi
Occurrence
Lead
USGS ResearchResearch14.6 mi
Roadcut
Phosphate
USGS ResearchResearch14.9 mi
Roadcut
Phosphate
USGS ResearchResearch15.9 mi
Creek Bank
Phosphate
USGS ResearchResearch16.1 mi
Dyersville Diggings
Lead
USGS ResearchResearch16.5 mi
Creek Bank
Phosphate
USGS ResearchResearch16.5 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch17.2 mi
Stewart and Bartlett Mine
Lead, Zinc
USGS ResearchResearch17.2 mi
Levens Mine
Lead, Zinc
USGS ResearchResearch17.3 mi
Stewart and Bartlett Mine
Lead
USGS ResearchResearch17.4 mi
Stewarts Cave Mine
Lead, Zinc
USGS ResearchResearch17.4 mi
Levens Mine North Langworthy Mine
Lead, Zinc
USGS ResearchResearch17.5 mi
Stewarts Cave Mine
Lead
USGS ResearchResearch17.7 mi
Gogel Quarry
Mineral resource occurrence
USGS ResearchResearch17.7 mi
Roadcut
Phosphate
USGS ResearchResearch17.8 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch17.8 mi
Level Mine
Lead, Zinc
USGS ResearchResearch17.9 mi
Level Mine
Lead
USGS ResearchResearch18.1 mi
Composite Section
Phosphate
USGS ResearchResearch18.4 mi
Kilbourne Mine
Lead, Zinc
USGS ResearchResearch18.5 mi
Brugh and Amsden Mine
Lead, Zinc
USGS ResearchResearch18.5 mi
Kilbourne Mine
Lead
USGS ResearchResearch18.6 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch18.7 mi
Brugh and Amsden Mine
Zinc, Lead
USGS ResearchResearch18.7 mi
Beadle Mine
Lead, Zinc
USGS ResearchResearch18.8 mi
Occurrence
Phosphate
USGS ResearchResearch18.8 mi
Beadle Mine, Dubuque and L Superior Mine
Lead, Zinc
USGS ResearchResearch19.3 mi
Fourteenth Street Mine
Zinc, Lead
USGS ResearchResearch19.3 mi
Fourteenth Street Mine
Lead, Zinc
USGS ResearchResearch19.4 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch19.4 mi
Creek Bank
Phosphate
USGS ResearchResearch19.6 mi
Roadcut
Phosphate
USGS ResearchResearch19.6 mi
Johnson Quarry
Mineral resource occurrence
USGS ResearchResearch19.7 mi
Spellman Farm
Lead
USGS ResearchIowa rockhounding inventory
4,264total source records
317Ready, including conditions
3,862historical USGS records
The same U.S. inventory supplies the national map, the United States view on the global map, state maps and location guides. All 24 historical-record batches are included. Ready totals include Ready with conditions for the stated activity; read the individual conditions. A documented historical record with current access details pending says Update coming soon.
Source screening is not a field inspection or collecting permission. Materials, feature details, location guides and navigation options remain attached to individual records. Local and material-specific lists can be smaller than the complete inventory.