Figure 6. Aerial view of bouldery moraine ridges crossing a blueberry field in Sedgwick, east of Penobscot Bay. The ice margin retreated from right to left (northward). The close spacing of these moraines suggests that they may be annual features, with the distance between them indicating how far the ice margin receded during the summer melt season. Photo by J. T. Kelley.

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Last updated on July 24, 2007

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