Mining & minerals
Alaska Bedrock Geology (USGS)
Statewide bedrock geology tile layer — rock types, formations, mineral belts. USGS Geologic Map of Alaska.
Why this data matters
- Lithology drives mineral potential (e.g. intrusive contacts, favorable host rocks).
- Essential for prospectivity and for explaining “why this area” in reports.
- Tile layer — fast for basemap or overlay use.
Data source
| Field | Value |
|---|---|
| Agency | U.S. Geological Survey (USGS) |
| Service | ArcGIS tile layer |
| Update frequency | Major map revisions |
| Coverage | Alaska statewide |
| Zoom | All zooms |
Related layers
- DGGS Geochemistry
- DGGS Structural Faults — faults and shear zones
- ARDF — known occurrences
GIS Endpoints
REST (ArcGIS)
https://tiles.arcgis.com/tiles/v01gqwM5QqNysAAi/arcgis/rest/services/Geologic_map_of_Alaska_TileLayer/MapServer
QGIS: Layer → Add Layer → Add WMS/WFS Layer → paste URL. ArcGIS: Add Data → Data from Path.
View this layer in the TrueTopo map
Open app.truetopo.com →