Sand ripples formed under water and exposed at low tide. Essex County, Massachusetts. no date.
Summary
Sand ripples formed under water and exposed at low tide. Bar at mouth of Squam River, Cape Ann. Looking toward the land. The oar is 7 feet long. Gloucester quadrangle. Essex County, Massachusetts. no date.
Summary
Sand ripples formed under water and exposed at low tide. Bar at mouth of Squam River, Cape Ann. Looking toward the land. The oar is 7 feet long. Gloucester quadrangle. Essex County, Massachusetts. no date.
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Available in the U.S. Geological Survey Denver Library Photographic Collection, Gilbert, G.K. Collection.
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