National Geologic Map Database
Title: Bedrock geologic map of the Ipswich quadrangle, Essex County, Massachusetts
Author(s): Dennen, W.H.
Publishing Organization: U.S. Geological Survey
Series and Number: Geologic Quadrangle Map GQ-1698
- Publication Date: 1991
- Map Scale: 1:24,000
- Cross Section: Yes
- North Latitude: 42° 45' 0" N (42.7500)
- South Latitude: 42° 37' 30" N (42.6250)
- East Longitude: 70° 45' 0" W (-70.7500)
- West Longitude: 70° 52' 30" W (-70.8750)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.