Bigger model : https://sketchfab.com/3d-models/signal-dalaric-france-83b4ed1dd9014992930945f07e70b0c8

• Generator: DEM Net Elevation API
• Mesh reduction: geometry3Sharp (GradientSpace, Ryan Schmidt) BSL 1.0 License
• Digital Elevation Model: IGN
• Imagery: MapBox Satellite