Figure 4. Cobscook Bay State Park section of the Bedrock Geologic Map of Eastport, Maine (7.5' scale of Gates (1977). Edmunds Formation: Setb - tuff breccia; Seb - basalt; Ses - mudstone. Dennys Formation: Sdb - basalt; Sdtb - tuff breccia. d - diabase and gabbro dikes.

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Last updated on October 6, 2005

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