Interactive 50-state rockhounding map, locations, rules and field guides
REVIEWED LOCATION
Winterswijk Quarry — Visitor-Day Fossil & Mineral Search Rockhounding Status & Field Guide
One of the Netherlands’ most important Triassic fossil localities, but access is tightly controlled. The Geological Survey says visitors cannot enter independently and recommends a visitor day for fossil/mineral searching; current special excursions confirm supervised searching can occur under organizer/quarry permission.
Conditional statusVery high evidencemeeting-area map precisionCurrent review cycle freshnessImportant: Do not enter independently. A normal guided quarry walk is not automatically a collecting event.
What is here
Triassic Muschelkalk with reptile fossils, trace fossils and minerals
No independent quarry searching. Fossil/mineral collecting occurs only on separately organized visitor/search days or approved supervised excursions; ordinary guided tours do not imply collecting.
Use only the meeting/location instructions supplied by the visitor-day or excursion organizer. The public map point is generalized to the safe visitor approach, not a quarry face.
Detailed status
conditional
Permission
Required
Permit
Not flagged
Fee
Required
Guide
Required
Booking
Required
Surface collecting
conditional
Hammering
conditional
Digging
no
Safety
Active quarry: machinery, steep faces, unstable rock and industrial rules. Follow Sibelco/organizer PPE and supervision requirements.
Seasonal / timing conditions
Access depends on scheduled visitor/search days and organizer eligibility/capacity.