REVIEWED LOCATION

Cockerill Mine Museum, Ellergronn — Guided Iron-Mining & Mineral Heritage Rockhounding Status & Field Guide

The restored Katzenberg/Cockerill mining site at Ellergronn combines guided industrial heritage with fossils, minerals and interpretation of former open-pit mines that have become a nature reserve.

Protected / viewing statusVery high evidenceentrance map precisionCurrent review cycle freshness
Important: The adjacent reserve and former mine are not represented as recreational collecting ground.

What is here

historic iron-industry mine site with fossils, minerals and former open-pit workings

Materials / interest: Iron Ore, Fossils, Limonite, Mixed Minerals

Collecting and access

Guided museum/mining-heritage viewing only. Fossils and minerals described by the visitor site are exhibits/context, not take-home collecting permission.

Use the Ellergronn visitor centre. The current listing asks groups to book the guided mine visit in advance; do not enter closed mine or reserve areas off route.

Detailed status
viewing
Permission
Not flagged
Permit
Not flagged
Fee
Required
Guide
Required
Booking
Required
Surface collecting
no
Hammering
no
Digging
no

Safety

Former mine terrain may contain steep slopes and closed workings; remain on managed visitor paths and tours.

Review status

Access reviewed: 2026-09-10 · Sources reviewed: 2026-09-10 · Next scheduled review: 2027-09-10.

Recheck access, closures, permissions and current source instructions before field travel.

More reviewed places in Luxembourg

Minett Park Fond-de-Gras — Iron-Ore & Industrial Geology HeritageNational Mining Museum, Rumelange — Guided Iron-Mine HeritagePrënzebierg–Giele Botter — Former Iron Open-Pit Geological TrailHaff Réimech — Former Gravel Pits & Protected Wetland Landscape

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