Conditional61.0 mi
Keokuk-Area Private Geode Collecting — Permission Required
Keokuk geodes with quartz, calcite and associated minerals
Core atlasIOWA CITY ROCKHOUNDING HUB
Rockhounding Near Iowa City, Iowa
Iowa City anchors Coralville Devonian fossil geology and eastern Iowa river/limestone research.
78records within 70 mi
10core atlas
68USGS Research
0Ready
2Conditional
LOCAL INTERACTIVE MAP
Rockhounding map near Iowa City
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.
What is this area strongest for?
This hub uses Iowa City as a geographic base, while the material mix is calculated from the records actually mapped around it.
Field regions around Iowa City
Nearby records worth opening individually
Records are ordered by evidence status first, then distance. Open the detailed guide before treating any pin as a trip destination.
Conditional61.0 mi
Warsaw Formation Streams & Ravines — Geode Context
Keokuk geodes, quartz, calcite and chalcedony
Core atlasResearch17.4 mi
Martin Marietta Quarry
Zinc, Iron
USGS ResearchResearch19.5 mi
Sharpless Dredge - Plant
Mineral resource occurrence
USGS ResearchResearch25.3 mi
Cedar River Geology Research
Devonian bedrock, fossils and river gravels
Core atlasResearch32.3 mi
Anamosa Mines
Lead, Zinc
USGS ResearchResearch33.2 mi
Old Long Quarry
Mineral resource occurrence
USGS ResearchResearch37.5 mi
Cedar Valley Group Fossil Research
Devonian limestone, corals, brachiopods and crinoids
Core atlasResearch42.7 mi
Wapsipinicon River Geology Research
Paleozoic bedrock, dolomite, limestone and fossils
Core atlasResearch43.0 mi
Baldwin Mines
Lead
USGS ResearchResearch43.5 mi
Occurrence
Lead
USGS ResearchResearch44.4 mi
Old Rr M Jacobsn Pit
Mineral resource occurrence
USGS ResearchResearch45.6 mi
Mulneaux Quarry
Mineral resource occurrence
USGS ResearchResearch45.7 mi
Main Baldwin Diggings
Lead
USGS ResearchResearch46.6 mi
Bloore Quarry
Mineral resource occurrence
USGS ResearchResearch46.8 mi
Mineral Creek Diggings
Lead
USGS ResearchResearch48.6 mi
Williamson and Stead Brickyard
Mineral resource occurrence
USGS ResearchResearch49.5 mi
Mediapolis Quarry
Mineral resource occurrence
USGS ResearchResearch50.1 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch50.5 mi
Gillespie Farm Diggings
Lead
USGS ResearchResearch51.1 mi
George Huber Farm
Zinc
USGS ResearchResearch51.3 mi
Nelson Quarry
Mineral resource occurrence
USGS ResearchResearch53.0 mi
Iowa River Geology Research
limestone, sandstone, glacial deposits and river gravels
Core atlasResearch54.3 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch54.5 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch54.8 mi
Arnold Pit
Mineral resource occurrence
USGS ResearchResearch54.9 mi
Mississippi River Bluff Geology Research
Paleozoic bedrock, fossils, dolomite and limestone
Core atlasResearch55.5 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch55.9 mi
Gogel Quarry
Mineral resource occurrence
USGS ResearchResearch56.6 mi
Masonville Quarry
Mineral resource occurrence
USGS ResearchResearch56.8 mi
Lytle Creek Diggings
Lead
USGS ResearchResearch57.4 mi
Dyersville Diggings
Lead
USGS ResearchResearch57.5 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch57.7 mi
Renner Quarry
Mineral resource occurrence
USGS ResearchResearch57.8 mi
Prospect
Lead
USGS ResearchResearch58.3 mi
Brooks Quarry
Mineral resource occurrence
USGS ResearchResearch59.2 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch60.9 mi
Greenley Pit
Mineral resource occurrence
USGS ResearchResearch61.0 mi
Keokuk Geode Region Research
Keokuk geodes, quartz, calcite and associated minerals
Core atlasResearch61.0 mi
Warsaw Formation Geode-Bearing Strata Research
Mississippian limestone/shale, geodes, quartz and calcite
Core atlasResearch61.5 mi
Zwingle Mines and Occurrences
Lead, Zinc
USGS ResearchResearch61.5 mi
Drill Hole
Zinc
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.