KODIAK ISLAND, ALASKA—A prehistoric stone fish trap has been found on northern Kodiak Island, reports Alaska Native News. Alutiiq Museum archaeologist Patrick Saltonstall identified the rare trap, known as a corrall, at the mouth of a stream. At high tide, salmon would swim above the corrall, but at low tide the fish would be trapped within its stone walls. “The fish trap took a lot of work to build and maintain. I imagine that it was reused year after year and that it was owned by a community or an extended family,” says Saltonstall. “Many lines of archaeological evidence indicate that Alutiiq ancestors developed tools to efficiently harvest large quantities of fish. A fish trap is another great example.” Next to the trap Saltonstall also discovered previously unidentified petroglyphs. To read in-depth about the archaeology of native Alaskan peoples, go to “Cultural Revival.”