National Geologic Map Database
Product Description Page
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Title: Ages of rocks in the southwestern Washington and northwestern Oregon as indicated by paleontological and isotopic dates
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Author(s): Niem, W.A., and Niem, A.R.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Open-File Report OF-92-344
- Publication Date: 1992
- Map Scale: 1:250,000
- Cross Section: None
- North Latitude: 47° 38' 35" N (47.6430)
- South Latitude: 45° 28' 26" N (45.4740)
- East Longitude: 121° 20' 13" W (-121.3370)
- West Longitude: 124° 22' 59" W (-124.3830)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.