Research6.6 mi
Martin Marietta Quarry
Zinc, Iron
USGS ResearchIOWA LOCAL FIELD REGION
Cedar River Geology Rockhounding Guide
River, limestone and fossil research across eastern Iowa.
LOCAL INTERACTIVE MAP
Cedar River 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 Cedar River Geology
The records below may represent collecting sites, managed programs, protected resources or research-only geology. Their individual status is more important than proximity.
Research15.9 mi
Old Long Quarry
Mineral resource occurrence
USGS ResearchResearch20.2 mi
Cedar Valley Group Fossil Research
Devonian limestone, corals, brachiopods and crinoids
Core atlasResearch23.7 mi
Anamosa Mines
Lead, Zinc
USGS ResearchResearch28.4 mi
Mulneaux Quarry
Mineral resource occurrence
USGS ResearchResearch30.4 mi
Sharpless Dredge - Plant
Mineral resource occurrence
USGS ResearchResearch32.6 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch32.8 mi
Wapsipinicon River Geology Research
Paleozoic bedrock, dolomite, limestone and fossils
Core atlasResearch36.3 mi
Williamson and Stead Brickyard
Mineral resource occurrence
USGS ResearchResearch36.9 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch37.1 mi
George Huber Farm
Zinc
USGS ResearchResearch38.3 mi
Occurrence
Lead
USGS ResearchResearch39.3 mi
Arnold Pit
Mineral resource occurrence
USGS ResearchResearch39.3 mi
Cedar River Geology Research
Devonian bedrock, fossils and river gravels
Core atlasResearch39.9 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch40.1 mi
Masonville Quarry
Mineral resource occurrence
USGS ResearchResearch40.5 mi
Baldwin Mines
Lead
USGS ResearchResearch40.7 mi
Brooks Quarry
Mineral resource occurrence
USGS ResearchResearch41.0 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch42.6 mi
Iowa River Geology Research
limestone, sandstone, glacial deposits and river gravels
Core atlasResearch42.6 mi
Mineral Creek Diggings
Lead
USGS ResearchResearch43.2 mi
Greenley Pit
Mineral resource occurrence
USGS ResearchResearch43.3 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch43.3 mi
Main Baldwin Diggings
Lead
USGS ResearchResearch44.0 mi
Gogel Quarry
Mineral resource occurrence
USGS ResearchResearch45.1 mi
Gillespie Farm Diggings
Lead
USGS ResearchResearch45.6 mi
Mullen Quarry
Mineral resource occurrence
USGS ResearchResearch45.7 mi
Waterloo South Quarry
Iron, Fluorite, Barite, Copper
USGS ResearchResearch45.8 mi
Dyersville Diggings
Lead
USGS ResearchResearch46.4 mi
Bloore Quarry
Mineral resource occurrence
USGS ResearchResearch46.7 mi
Hollerman Pit
Mineral resource occurrence
USGS ResearchResearch48.0 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch48.6 mi
Pint's Quarry
Iron, Fluorite, Barite, Zinc, Lead
USGS ResearchResearch49.0 mi
Aurora Quarry
Mineral resource occurrence
USGS ResearchResearch49.6 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch49.7 mi
Old Rr M Jacobsn Pit
Mineral resource occurrence
USGS ResearchResearch51.1 mi
Lytle Creek Diggings
Lead
USGS ResearchResearch51.3 mi
Prospect
Lead
USGS ResearchResearch51.6 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch51.7 mi
Unknown
Mineral resource occurrence
USGS ResearchResearch54.2 mi
Unknown
Mineral resource occurrence
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.