Geology
USGS Geologic Provinces — Alaska
USGS geologic province boundaries defining major physiographic and structural regions.
Why this data matters
- Provinces define fundamental geologic character of regions; useful for regional exploration planning.
- Groups terranes and rock types into manageable units.
Data source
| Field | Value |
|---|---|
| Agency | U.S. Geological Survey (USGS) |
| Coverage | Alaska |
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