National Geologic Map Database
Product Description Page
* See base map disclaimer below
- Links and Downloads:
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Geologic map with explanation (PDF, 7MB)
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Sheet 1: Geologic map only (PDF, 4.2MB)
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Sheet 2: Explanation only (PDF, 324KB)
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Sheet 3: Cross sections (PDF, 1.2MB)
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.