National Geologic Map Database
Product Description Page
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Title: Geology of the Portal quadrangle, North Dakota
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Author(s): Townsend, R.C.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Geologic Quadrangle Map GQ-47
- Publication Date: 1954
- Map Scale: 1:62,500
- Cross Section: None
- North Latitude: 49° 0' 0" N (49.0000)
- South Latitude: 48° 45' 0" N (48.7500)
- East Longitude: 102° 30' 0" W (-102.5000)
- West Longitude: 102° 45' 0" W (-102.7500)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.