To the untrained eye, the rows of rocks piled near the tideline on British Columbia’s Quadra Island could easily be dismissed as the constructions of bored beachgoers.

But new research using radiocarbon dating and analyses of ancient landscapes reveals that these rock walls are the remnants of a technology at least 3,500 years old—evidence of an aquaculture system known as clam gardens that once helped feed a much larger population of coastal Indigenous peoples.

We are located on Quadra Island which has approximately 3000 full time residents with anincrease during the summer.

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Families who built the clam gardens likely controlled harvesting from those sites.

Of the clam garden walls studied on Quadra Island, new research reveals that one was built roughly 3,500 years ago.

Lots of room for up to eight divers with two ladders so no waiting when your dive is done.

The cold waters of Discovery Passage provide a unique environment for scuba diving from Campbell River.

The study was conducted on the territories of the We Wai Kai, We Wai Kum, K'omoks, Xwemalhkwu, and Klahoose Nations and supported by the Hakai Institute, the Tula Foundation, Wnner Gren, the National Geographic Society, the Social Sciences and Humanities Research Council, Simon Fraser University and the University of Victoria.

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(Nicole Smith)Before the ancient Egyptians built the last of the pyramids, indigenous people along the coast of B. were also engineering and building stone structures that would last for thousands of years, a new study shows.

Clam gardens are undersea walls built to create terraces on the beach at just the right water level to create the ideal habitat for shellfish such as clams.

The technology allows far more shellfish to be produced and harvested along a given stretch of coastline, especially when combined with other traditional management techniques, such as removal of larger clams.