National Geologic Map Database
Product Description Page
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Title: Ordovician - Silurian graptolites from the Ledbetter Slate, northeastern Washington State
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Author(s): Carter, Claire
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Publishing Organization: U.S. Geological Survey
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Series and Number: Bulletin 1860-B
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Larger Work: Shorter contributions to paleontology and stratigraphy
- Publication Date: 1989
- Map Scale: 1:250,000
- Cross Section: None
- North Latitude: 49° 0' 0" N (49.0000)
- South Latitude: 48° 4' 59" N (48.0830)
- East Longitude: 117° 7' 59" W (-117.1330)
- West Longitude: 118° 10' 1" W (-118.1670)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.