Ready31.1 mi
Mazonia-Braidwood Fossil Collecting Program
Mazon Creek Pennsylvanian fossils, siderite concretions, plant and animal fossils
Core atlasILLINOIS CITY ROCKHOUNDING HUB
Rockhounding Near Ottawa, Illinois
Ottawa provides the planning base for Starved Rock, Matthiessen and Illinois River sandstone and glacial geology.
6records within 70 mi
4core atlas
2USGS Research
1Ready
0Conditional
LOCAL INTERACTIVE MAP
Rockhounding map near Ottawa
Explore nearby Illinois 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 Ottawa as a geographic base, while the material mix is calculated from the records actually mapped around it.
Field regions around Ottawa
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.
Research11.9 mi
La Salle County Fire Clay
Mineral resource occurrence
USGS ResearchResearch28.1 mi
Northern Illinois Area Fireclay
Mineral resource occurrence
USGS ResearchResearch37.3 mi
Illinois Tully Monster Fossil Research
Tullimonstrum gregarium and Mazon Creek concretions
Core atlasResearch42.0 mi
Mazon Creek Fossil Lagerstätte Research
Tully monster, plant fossils, invertebrates, siderite concretions
Core atlasResearch67.3 mi
Lake Michigan Beach Stone & Glacial Drift Context
glacial erratics, dolostone, chert, fossils and beach stones
Core atlas