"Archaeologists have discovered a prehistoric fish trap constructed of rock walls near the mouth of a salmon stream on Alaska's Kodiak Island. The trap is in a lower intertidal zone that's covered by ocean water at high tide and exposed at low tide, the Kodiak Daily Mirror reported Tuesday (28 Jun 2017)...Archaeologists at the Alutiiq Museum in the city of Kodiak identified the trap. Salmon at high tide could swim into the stream, and when the tide receded, fish would be stranded in one of two corrals, said Patrick Saltonstall, the museum's curator of archaeology...
...The trap reminded Saltonstall of stone walls of a New England farm...."
Tim Visel once wrote "At the lowest tide, the rocks could be
exposed and function like a stonewall fence, which basically it was," as he described “Chaffinch Island, a public park in Guilford, CT, (which) shares a
similar feature – a stone fish weir from a headland. Here a similar bowl coastal
feature directed fish much in the same way. In South Cove, in Old Saybrook, at
the northeast corner of this bowl, a pronounced stonewall protrudes to create a
V-trap. The amount of stones used was tremendous, and some assemblage is clearly
visible on satellite imaging in the areas of the headland..."
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