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Bedrock geologic map of the Woodstock quadrangle, Grafton County, New Hampshire, https://t.co/1ScoaRL2mx https://t.co/8I9IiL7Q2k
Bedrock geologic map of the Woodstock quadrangle, Grafton County, New Hampshire, https://t.co/1ScoaRL2mx https://t.co/8I9IiL7Q2k