Geological Map of Greece (EAGME 500K) — 91 lithological-stratigraphic units from the Hellenic Survey of Geology and Mineral Exploration
Geological vector data from the Hellenic Survey of Geology and Mineral Exploration (EAGME) at 1:500,000 scale. 8,290 polygons classified into 91 lithological-stratigraphic symbols across 16 tectonic zones. Data downloaded via EAGME ArcGIS REST API, tiled into Sentinel-2 MGRS GeoPackage tiles, and served from S3. Follows the ProtectedAreasReader pattern: each polygon is a separate area card with its own geological label, age, lithological description, and tectonic zone.