National Geologic Map Database
Product Description Page
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Title: Preliminary geologic and tectonic maps of Oregon east of the 121st meridian
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Author(s): Walker, G.W.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Miscellaneous Field Studies Map MF-495
- Publication Date: 1973
- Map Scale: 1:500,000
- Cross Section: None
- North Latitude: 46° 0' 0" N (46.0000)
- South Latitude: 42° 0' 0" N (42.0000)
- East Longitude: 116° 27' 31" W (-116.4586)
- West Longitude: 121° 0' 0" W (-121.0000)
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