National Geologic Map Database
Product Description Page
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Title: Twin River formation (redefinition), northern Olympic Peninsula, Washington
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Author(s): Brown, R.D., Jr., and Gower, H.D.
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Publishing Organization: American Association of Petroleum Geologists
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Series and Number: Bulletin v. 42, no. 10 [p. 2492-2512]
- Publication Date: 1958
- Map Scale: 1:633,600
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.