Ratheimer spoil heap
Thermally inactive
Coal heap (contains coal remains)
61.11
ha
153.1
m height
1914 - 1997
Period
Layers
- Heap status
- Inactive
- Reclamation
- Fully reclaimed
- Thermal activity status
- Thermally inactive
District Government of Cologne. Digital Terrain Model (DGM1m) [online]. https://www.bezreg-koeln.nrw.de/geobasis-nrw/produkte-und-dienste/hoehenmodelle/digitale-gelaendemodelle/digitales-gelaendemodell
Online source. Available at: https://de.wikipedia.org/wiki/Zeche_Sophia-Jacoba
Information data quality:
Low – Rough estimates, unverified online sources, oral testimonies, data extrapolated from neighboring sites, incomplete information, unknown sources
Geometric data accuracy:
High – GPS/GNSS field survey (RTK/PPK), drone survey, LiDAR scanning, cadastral survey, total station