Geologic Map of Alaska in Alaska, drawn over satellite imagery

Alaska ยท State GeologyExplorer

Geologic Map of Alaska

The USGS statewide Geologic Map of Alaska at 1:1,584,000: one unit list for the whole state, with each unit's rock types and age. Coarser than the detailed state geology, it covers the ground the detailed maps have not reached. Open the filter to search the units or show only the gold host rocks.

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